DTC Advanced Diagnostics: VSA related DTCs
VSA Related DTCs
NOTE
Initial Diagnosis:
The initial on-board diagnosis occurs right after the vehicle condition is turned to the ON mode, and the ABS/VSA indicator comes on, and continues until the indicator goes off.
Regular Diagnosis:
The regular on-board diagnosis begins right after the ABS/VSA indicator goes off, and it continues until the vehicle condition is turned to the OFF (LOCK) mode.
Review "How to troubleshoot the VSA system" before doing the DTC troubleshooting procedure.
Test-drive the vehicle according to local traffic conditions and regulations. Do not test-drive on a lift unless specified.
The possible causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
DTC C0010-49: Inlet Solenoid (Left Front) Circuit Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0011-49: Outlet Solenoid (Left Front) Circuit Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0014-49: Inlet Solenoid (Right Front) Circuit Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0015-49: Outlet Solenoid (Right Front) Circuit Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0018-49: Inlet Solenoid (Left Rear) Circuit Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0019-49: Outlet Solenoid (Left Rear) Circuit Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C001C-49: Inlet Solenoid (Right Rear) Circuit Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C001D-49: Outlet Solenoid (Right Rear) Circuit Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0020-12: Pump Motor Circuit Failure (Stuck ON)
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Degrade EBD performance
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Open between the VSA modulator-control unit and the body ground (GND line)
VSA modulator-control unit internal failure

DTC C0020-14: Pump Motor Circuit Failure (Stuck OFF)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Degrade EBD performance
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Open or Short to ground between the VSA modulator-control unit and the auxiliary under-dash fuse box (+B ABS/VSA MTR line)
Blown fuse (Auxiliary under-dash fuse box No. D1-4 (40 A))
VSA modulator-control unit internal failure

DTC C0023-12: Brake Diag Circuit ON Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Turn the vehicle to the ON mode and release the brake pedal.
Execution
Regular Diagnosis
Duration
About 2 seconds
DTC Type
1 drive cycle
None
Fail Safe Action
Stop driving support system's brake function
Possible Cause
Short to ground between the VSA modulator-control unit and the brake light relay (BRK LAMP line)
Open between the PCM and the brake pedal position switch (STOP SW line)
PCM internal failure
VSA modulator-control unit internal failure

DTC C0023-14: Brake Diag Circuit OFF Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Turn the vehicle to the ON mode and press the brake pedal.
Execution
Regular Diagnosis
Duration
About 2 seconds
DTC Type
1 drive cycle
None
Fail Safe Action
Stop driving support system's brake function
Possible Cause
Open between the VSA modulator-control unit and the brake light relay (BRK LAMP, STOP LT lines)
Open between the brake pedal position switch and the brake light relay (STOP SW line)
Brake light relay failure
Open between the brake light relay and the under-dash fuse/relay box (IG1 VSA/ABS line)
VSA modulator-control unit internal failure

DTC C0031-14: Left Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Open, Short to ground, or Short to power between the VSA modulator-control unit and the left-front wheel speed sensor (FR L ABS SNSR+, FR L ABS SNSR- lines)
Short to another line between the VSA modulator-control unit and the left-front wheel speed sensor (FR L ABS SNSR+, FR L ABS SNSR- lines)
Left- front wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C0031-3A: Wheel Speed Sensor (Left Front) Signal Failure (Signal Frequency is Too High)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle for 80 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 80 seconds
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Electrical noise in the left-front wheel speed sensor signal
Left-front wheel speed sensor incorrect installation
Damage or debris on the left-front encoder surface
Left-front wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C0031-62: Left Front Wheel Speed Sensor Signal Compare Failure
Confirmation Procedure
Basic Condition:
No other DTCs detected
Brake TCS function not in operation
ABS function not in operation

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 32 mph (50 km/h) or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Left-front wheel speed sensor incorrect installation
Left-front wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C0034-14: Right-Front Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Open, Short to ground, or Short to power between the VSA modulator-control unit and the right-front wheel speed sensor (FR R ABS SNSR+, FR R ABS SNSR- lines)
Short to another line between the VSA modulator-control unit and the right-front wheel speed sensor (FR R ABS SNSR+, FR R ABS SNSR- lines)
Right-front wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C0034-3A: Wheel Speed Sensor (Right Front) Signal Failure (Signal Frequency is Too High)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle for 80 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 80 seconds
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Electrical noise in the right-front wheel speed sensor signal
Right-front wheel speed sensor incorrect installation
Damage or debris on the right-front encoder surface
Right-front wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C0034-62: Right Front Wheel Speed Sensor Signal Compare Failure
Confirmation Procedure
Basic Condition:
No other DTCs detected
Brake TCS function not in operation
ABS function not in operation

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 31 mph (50 km/h) or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Right-front wheel speed sensor incorrect installation
Right-front wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C0037-14: Left Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Open, Short to ground, or Short to power between the VSA modulator-control unit and the left-rear wheel speed sensor (RR L ABS SNSR+, RR L ABS SNSR- lines)
Short to another line between the VSA modulator-control unit and the left-rear wheel speed sensor (RR L ABS SNSR+, RR L ABS SNSR- lines)
Left-rear wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C0037-3A: Wheel Speed Sensor (Left Rear) Signal Failure (Signal Frequency is Too High)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle for 80 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 80 seconds
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Electrical noise in the left-rear wheel speed sensor signal
Left-rear wheel speed sensor incorrect installation
Damage or debris on the left-rear encoder surface
Left-rear wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C0037-62: Left Rear Wheel Speed Sensor Signal Compare Failure
Confirmation Procedure
Basic Condition
No other DTCs detected
Brake TCS function not in operation
ABS function not in operation

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 32 mph (50 km/h) or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Left-rear wheel speed sensor incorrect installation
Left-rear wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C003A-14: Right Rear Wheel Speed Sensor Circuit Failure (Circuit Short To Ground or Open)
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Open, Short to ground, or Short to power between the VSA modulator-control unit and the right-rear wheel speed sensor (RR R ABS SNSR+, RR R ABS SNSR- lines)
Short to another line between the VSA modulator-control unit and the right-rear wheel speed sensor (RR R ABS SNSR+, RR R ABS SNSR- lines)
Right-rear wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C003A-3A: Wheel Speed Sensor (Right Rear) Signal Failure (Signal Frequency is Too High)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle for 80 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 80 seconds
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Electrical noise in the right-rear wheel speed sensor signal
Right-rear wheel speed sensor incorrect installation
Damage or debris on the right-rear encoder surface
Right-rear wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C003A-62: Right Rear Wheel Speed Sensor Signal Compare Failure
Confirmation Procedure
Basic Condition:
No other DTCs detected
Brake TCS function not in operation
ABS function not in operation

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 32 mph (50 km/h) or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Right-rear wheel speed sensor incorrect installation
Right-rear wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C0040-12: Brake Lamp Switch Failure (Stuck ON)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 10 mph (15 km/h) or more for 60 seconds or more under these condition:
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Accelerator pedal pressed
Brake pedal released
Execution
Regular Diagnosis
Duration
About 60 seconds
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Short to power between the brake pedal position switch and the PCM (STOP LT line)
Brake pedal position switch failure
PCM internal circuit failure (Brake pedal position switch stuck ON)
VSA modulator-control unit internal failure

DTC C0040-16: Plausibility BLS vs. Pressure Sensor
Confirmation Procedure
Operating Condition:
1.
Start the engine.
2.
Wait 1 second or more without pressing the brake pedal.
3.
Press the brake pedal hard for 1 second or more.
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Brake pedal position switch incorrect position
Open or Short to ground between the brake pedal position switch and the under-hood fuse/relay box (+B STOP line)
Open or Short to ground between the brake pedal position switch and the PCM (STOP LT line)
Blown fuse (Under-hood fuse/relay box No. B6 (10 A))
Brake pedal position switch failure
PCM internal circuit failure
VSA modulator-control unit internal failure

DTC C0044-49: Master Cylinder Pressure Sensor Failure (Internal Circuit Failure)
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Brake pedal height incorrect position
VSA modulator-control unit internal failure

DTC C0044-62: Master Cylinder Pressure Sensor Failure (Signal stuck)
Confirmation Procedure
Basic Condition:
ABS/VSA function not in operation
Vehicle is not braking

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle without pressing the brake pedal at less than 8 mph (14 km/h) for 30 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 30 seconds
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Brake pedal height incorrect position
VSA modulator-control unit internal failure

DTC C0049-7B: Brake Fluid Level Too Low
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine, then wait 60 seconds or more.
Execution
Regular Diagnosis
Duration
About 60 seconds
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function (Fade out)
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Short to ground between the gauge control module and the brake fluid level switch (BRAKE LEVEL SW line)
Low brake fluid level
Brake fluid level switch failure
Gauge control module failure
VSA modulator-control unit internal failure

DTC C0051-62: Steering Angle Sensor Failure (Signal Compare Failure)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 47 mph (75 km/h) or more for 5 seconds or more and change lanes for a few times.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 5 seconds
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function (Fade out)
Stop VSA function
Stop hill start assist function
Possible Cause
Steering angle sensor failure
VSA modulator-control unit internal failure

DTC C0051-96: Steering Angle Sensor Failure (Sensor Detects Internal Failure)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Turn the steering wheel left and right for a few times.
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function (Fade out)
Stop VSA function
Stop hill start assist function
Possible Cause
Steering angle sensor failure
VSA modulator-control unit internal failure

DTC C0061-49: Built-in Acceleration Sensor Failure (Internal Circuit Failure)
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0061-62: Built-in Lateral Acceleration Sensor Failure (Signal Compare Failure)
Confirmation Procedure
Basic Condition:
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle under these conditions:
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Vehicle speed at 32 mph (50 km/h) or more
Do not press the brake pedal for 20 seconds or more
Change lanes for a few times
Execution
Regular Diagnosis
Duration
About 2 seconds
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function (Fade out)
Stop VSA function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0062-62: Built-in Longitudinal Acceleration Sensor Failure (Signal Compare Failure)
Confirmation Procedure
Basic Condition:
No other DTCs detected
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle under these conditions:
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Vehicle speed at 32 mph (50 km/h) or more
Do not press the brake pedal for 20 seconds or more
Change lanes for a few times
Execution
Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0063-49: Built-in Yaw Rate Sensor Failure (Internal Circuit Failure)
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function (Fade out)
Stop VSA function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C0063-62: Built-in Yaw Rate Sensor Failure (Signal Compare Failure)
Confirmation Procedure
Basic Condition:
No other DTCs detected
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle under these conditions:
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Vehicle speed at 32 mph (50 km/h) or more
Do not press the brake pedal for 20 seconds or more
Change lanes for a few times
Execution
Regular Diagnosis
Duration
About 5 seconds
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function (Fade out)
Stop VSA function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C1000-94: ABS/VSA Activation Time Too Long
Confirmation Procedure
Basic Condition:
12 volt battery voltage 6.9 V or more

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 32 mph (50 km/h) or more for 60 seconds or more under these conditions:
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Accelerator pedal pressed
Brake pedal released
Execution
Regular Diagnosis
Duration
About 60 seconds
DTC Type
1 drive cycle
Brake system indicator on (Dependant upon the conditions)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (Dependant upon the conditions)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Low air pressure in tires
Damage or debris on the encoder surface
Different diameter tires
Wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C1014-1C: Left-Front Brake Caliper Pressure Sensor Internal Circuit Malfunction
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Fail Safe Action
Stop driving support system's brake function
Possible Cause
VSA modulator-control unit internal failure

DTC C1014-62: Left-Front Brake Caliper Pressure Sensor Malfunction
Confirmation Procedure
Basic Condition:
ABS/VSA function not in operation
Vehicle is not braking

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle without pressing the brake pedal at less than 8 mph (14 km/h) for 30 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 30 seconds
DTC Type
1 drive cycle
Fail Safe Action
Stop driving support system's brake function
Possible Cause
VSA modulator-control unit internal failure

DTC C1015-1C: Right-Front Brake Caliper Pressure Sensor Internal Circuit Malfunction
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Fail Safe Action
Stop driving support system's brake function
Possible Cause
VSA modulator-control unit internal failure

DTC C1015-62: Right-Front Brake Caliper Pressure Sensor Malfunction
Confirmation Procedure
Basic Condition:
ABS/VSA function not in operation
Vehicle is not braking

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle without pressing the brake pedal at less than 8 mph (14 km/h) for 30 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 30 seconds
DTC Type
1 drive cycle
Fail Safe Action
Stop driving support system's brake function
Possible Cause
VSA modulator-control unit internal failure

DTC C1020-49: VSA Master Cut Valve Failure (Unexpected Operation)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
2.
Test-drive the vehicle at 10 mph (15 km/h) or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C1021-49: VSA Suction Valve Failure (Unexpected Operation)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
2.
Test-drive the vehicle at 10 mph (15 km/h) or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC C1022-14: Power Source Failure for Pump Motor
Confirmation Procedure
Operating Condition:
1.
Start the engine, then wait 20 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 20 seconds
DTC Type
1 drive cycle
Brake system indicator on
ABS indicator on
VSA indicator on
Fail Safe Action
Degrade EBD performance
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Open or Short to ground between the VSA modulator-control unit and the auxiliary under-dash fuse box (+B ABS/VSA MTR line)
Blown fuse (Auxiliary under-dash fuse box No. D1-4 (40 A))
VSA modulator-control unit internal failure

DTC C1040-00: Different Diameter Tire is Detected
Confirmation Procedure
Basic Condition:
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 13 mph (20 km/h) or more for 72 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 72 seconds
DTC Type
1 drive cycle
Brake system indicator on (Dependant upon the conditions)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (Dependant upon the conditions)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Low air pressure in tires
Damage or debris on the encoder surface
Different diameter tires
Wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C1041-00: Right Front Wheel Abnormal Slip Detection
Confirmation Procedure
Basic Condition:
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 13 mph (20 km/h) or more for 72 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 72 seconds
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Low air pressure in right-front tire
Damage or debris on the right-front encoder surface
Different diameter right-front tire
Right-front wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C1042-00: Left Front Wheel Abnormal Slip Detection
Confirmation Procedure
Basic Condition:
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 13 mph (20 km/h) or more for 72 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 72 seconds
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Low air pressure in left-front tire
Damage or debris on the left-front encoder surface
Different diameter left-front tire
Left-front wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C1043-00: Right Rear Wheel Abnormal Slip Detection
Confirmation Procedure
Basic Condition:
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 13 mph (20 km/h) or more for 72 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 72 seconds
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Low air pressure in right-rear tire
Damage or debris on the right-rear encoder surface
Different diameter right-rear tire
Right-rear wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C1044-00: Left Rear Wheel Abnormal Slip Detection
Confirmation Procedure
Basic Condition:
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 13 mph (20 km/h) or more for 72 seconds or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 72 seconds
DTC Type
1 drive cycle
Brake system indicator on (If multiple wheel failures are detected)
ABS indicator on
VSA indicator on
Fail Safe Action
Stop EBD function (If multiple wheel failures are detected)
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Low air pressure in left-rear tire
Damage or debris on the left-rear encoder surface
Different diameter left-rear tire
Left-rear wheel speed sensor failure
VSA modulator-control unit internal failure

DTC C1C21-12: Back-Up Light Switch Stuck ON
Confirmation Procedure
Basic Condition:
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle (reverse position) for at least 1 second.
3.
Slowly decrease the speed and stop the vehicle.
4.
Keep the shift in reverse position, and wait at least 1 second.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Stop hill start assist function
Possible Cause
Short to power between the back-up light switch and MICU (BACK LT line)
Back-up light switch failure
MICU internal failure
VSA modulator-control unit internal failure

DTC C1C21-14: Back-Up Light Switch Stuck OFF
Confirmation Procedure
Basic Condition:
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle (reverse position) for at least 1 second.
3.
Slowly decrease the speed and stop the vehicle.
4.
Keep the shift in reverse position, and wait at least 1 second.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Stop hill start assist function
Possible Cause
Open between the between the back-up light switch and MICU (BACK LT line)
Blown fuse (Under-dash fuse/relay box No. C34 (7.5 A))
Blown back-up light bulb
Back-up light switch failure
MICU internal failure
VSA modulator-control unit internal failure

DTC P0833-12: Clutch Pedal Position Switch B Stuck ON
Confirmation Procedure
Basic Condition:
IG voltage above 10 V
No other DTCs detected

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 32 mph (50 km/h) or more for at least 3 minutes.
3.
Stop the vehicle.
4.
Repeat the driving pattern steps 2 through 3, four times.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
Depending on driving condition
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Stop hill start assist function
Possible Cause
Open between the PCM and the clutch pedal position switch B/D (CLUTCH SW (CRUISE) line)
Open between the clutch pedal position switch B/D and the body ground (GND line)
Clutch pedal position switch B/D incorrect position
Clutch pedal position switch B/D failure
PCM internal failure
VSA modulator-control unit internal failure

DTC P0833-14: Clutch Pedal Position Switch B Stuck OFF
Confirmation Procedure
Basic Condition:
IG voltage above 10 V
No other DTCs detected

Operating Condition:
1.
Start the engine, and wait 2 seconds.
2.
Test-drive the vehicle at 25 mph (40 km/h) or more for at least 1 second.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Stop hill start assist function
Possible Cause
Short to ground between the PCM and the clutch pedal position switch B/D (CLUTCH SW (CRUISE) line)
Clutch pedal position switch B/D incorrect position
Clutch pedal position switch B/D failure
PCM internal failure
VSA modulator-control unit internal failure

DTC U0029-00: CAN Communication Failure (Bus OFF)
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine, then wait 2 seconds or more.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 2 seconds
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Stop CAN function (Dependant upon the conditions)
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Open between the VSA modulator-control unit and the PCM (F-CAN_L, F-CAN_H lines)*1
Internal failure of another unit on F-CAN
CAN gateway internal failure*2
VSA modulator-control unit internal failure
*1: Without CAN gateway
*2: With CAN gateway

DTC U0100-00: CAN Communication Failure With ECM/ISU
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 7 mph (10 km/h) or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop brake assist function (Dependant upon the conditions)
Stop hill start assist function
Possible Cause
Open between the VSA modulator-control unit and the PCM (F-CAN_L, F-CAN_H lines)*1
Open or Poor connection between the VSA modulator-control unit and the CAN gateway (F-CAN B_H, F-CAN B_L lines)*2
Open or Poor connection between the PCM and the CAN gateway (F-CAN A_H, F-CAN A_L lines)*2
CAN gateway internal failure*2
PCM failure
VSA modulator-control unit internal failure
*1: Without CAN gateway
*2: With CAN gateway

DTC U0101-00: CAN Communication Failure With TCM
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 7 mph (10 km/h) or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Stop hill start assist function
Possible Cause
Open between the VSA modulator-control unit and the PCM (F-CAN_L, F-CAN_H lines)*1
Open or Poor connection between the VSA modulator-control unit and the CAN gateway (F-CAN B_H, F-CAN B_L lines)*2
Open or Poor connection between the PCM and the CAN gateway (F-CAN A_H, F-CAN A_L lines)*2
CAN gateway internal failure*2
PCM failure
VSA modulator-control unit internal failure
*1: Without CAN gateway
*2: With CAN gateway

DTC U0104-00: CAN Communication Failure With ACC
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 7 mph (10 km/h) or more for at least 2 seconds.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Regular Diagnosis
Duration
About 2 seconds
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Stop ACC function
Stop CMBS function
Possible Cause
Open between the VSA modulator-control unit and the CAN gateway (F-CAN B_H, F-CAN B_L lines)
Open between the CAN gateway and the multipurpose camera control unit (F-CAN B_H, F-CAN B_L lines)
Multipurpose camera unit failure
VSA modulator-control unit internal failure

DTC U0126-00: CAN Communication Failure With Absolute Steering Wheel Angle Sensor
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function (Fade out)
Stop VSA function
Stop hill start assist function
Possible Cause
Open between the steering angle sensor and the under-dash fuse/relay box (IG1 VSA/ABS line)
Open between the steering angle sensor and body ground (GND line)
Open between the VSA modulator-control unit and the steering angle sensor (F-CAN_L, F-CAN_H lines)*1
Open or Poor connection between the VSA modulator-control unit and the CAN gateway (F-CAN B_H, F-CAN B_L lines)*2
Open or Poor connection between the steering angle sensor and the CAN gateway (F-CAN B_H, F-CAN B_L lines)*2
CAN gateway internal failure*2
Steering angle sensor failure
VSA modulator-control unit internal failure
*1: Without CAN gateway
*2: With CAN gateway

DTC U0155-00: CAN Communication Failure With METER
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine, then wait 5 seconds or more.
Execution
Regular Diagnosis
Duration
About 5 seconds
DTC Type
1 drive cycle
VSA indicator on (Dependant upon the conditions)
Fail Safe Action
Degrade ABS performance (Dependant upon the conditions)
Stop engine drag torque control function (Dependant upon the conditions)
Stop TCS function (Fade out) (Dependant upon the conditions)
Stop VSA function (Dependant upon the conditions)
Stop brake assist function (Dependant upon the conditions)
Stop hill start assist function (Dependant upon the conditions)
Possible Cause
Open between the VSA modulator-control unit and the gauge control module (F-CAN_L, F-CAN_H lines)*1
Open or Poor connection between the VSA modulator-control unit and the CAN gateway (F-CAN B_H, F-CAN B_L lines)*2
Open or Poor connection between the gauge control module and the CAN gateway (F-CAN A_H, F-CAN A_L lines)*2
CAN gateway internal failure*2
Gauge control module failure
VSA modulator-control unit internal failure
*1: Without CAN gateway
*2: With CAN gateway

DTC U0401-68: ECM Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop hill start assist function
Possible Cause
PCM failure
VSA modulator-control unit internal failure

DTC U0402-68: TCM Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V

Operating Condition:
1.
Start the engine.
Execution
Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
VSA indicator on
Fail Safe Action
Degrade ABS performance
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop hill start assist function
Possible Cause
PCM failure
VSA modulator-control unit internal failure

DTC U3000-49: ECU Internal Circuit Failure
Confirmation Procedure
Basic Condition:
12 volt battery voltage 9.6 - 16.5 V
ABS/VSA function not in operation

Operating Condition:
1.
Start the engine.
2.
Test-drive the vehicle at 25 mph (40 km/h) or more.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (Dependant upon the conditions)
ABS indicator on (Dependant upon the conditions)
VSA indicator on (Dependant upon the conditions)
Fail Safe Action
Stop CAN function (Dependant upon the conditions)
Stop EBD function or Degrade EBD performance (Dependant upon the conditions)
Stop ABS function or Degrade ABS performance (Dependant upon the conditions)
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit internal failure

DTC U3000-51: ECU Software Update Failure
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator (Dependant upon the conditions)
ABS indicator on (Dependant upon the conditions)
VSA indicator on (Dependant upon the conditions)
Fail Safe Action
Stop CAN function
Stop EBD function
Stop ABS function
Stop engine drag torque control function
Stop TCS function
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
VSA modulator-control unit update not completed
VSA modulator-control unit internal failure

DTC U3006-16: Power Source Failure for ECU (Low Voltage)
Confirmation Procedure
Operating Condition:
1.
Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
2.
Test-drive the vehicle at 7 mph (10 km/h) or more for a few seconds.
(Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (Dependant upon the conditions)
ABS indicator on (Dependant upon the conditions)
VSA indicator on
Fail Safe Action
Stop CAN function (Dependant upon the conditions)
Stop EBD function or Degrade EBD performance (Dependant upon the conditions)
Stop ABS function or Degrade ABS performance (Dependant upon the conditions)
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
Open between the VSA modulator-control unit and the under-dash fuse/relay box (IG1 VSA/ABS line)
Low 12 volt battery voltage
VSA modulator-control unit internal failure

DTC U3006-17: Power Source Failure for ECU (High Voltage)
Confirmation Procedure
Operating Condition:
1.
Start the engine.
Execution
Initial Diagnosis/Regular Diagnosis
Duration
About 1 second
DTC Type
1 drive cycle
Brake system indicator on (Dependant upon the conditions)
ABS indicator on (Dependant upon the conditions)
VSA indicator on
Fail Safe Action
Stop CAN function (Dependant upon the conditions)
Degrade EBD performance (Dependant upon the conditions)
Stop ABS function or Degrade ABS performance (Dependant upon the conditions)
Stop engine drag torque control function
Stop TCS function or fade out (Dependant upon the conditions)
Stop VSA function
Stop brake assist function
Stop hill start assist function
Possible Cause
High 12 volt battery voltage
VSA modulator-control unit internal failure