VSA System Symptom Troubleshooting - ABS indicator, brake system indicator (red), VSA indicator, and brake system indicator (amber) do not go off (2/4-door (With ACC))

1.

All DTCs check:

All DTCs check

?1.	Turn the vehicle to the ON mode.

?2.	Do the All DTCs check with the HDS.

Are there DTCs indicated?


	YES

Do the DTC troubleshooting.?


	NO

Go to step 2.

2.

Gauge control module operation check:

Gauge control module operation check

?1.	Do the gauge control module self-diagnostic function.

Is the gauge control module OK?


	YES

Go to step 3.


	NO

Replace the gauge control module.?

3.

Fuse check 1:

Fuse check 1

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Check the following fuse.

Fuse

No. B34

Is the fuse OK?


	YES

The fuse is OK. Reinstall the fuse, then go to step 4.


	NO

Replace the fuse. Turn the vehicle to the ON mode, then the OFF (LOCK) mode. If the fuse blows again, repair the short to body ground on the No. B34 fuse circuit.?

4.

Fuse check 2:

Fuse check 2

?1.

Check the following fuse.

Fuse

No. A3-2

Is the fuse OK?


	YES

The fuse is OK. Reinstall the fuse, then go to step 5.


	NO

Replace the fuse. If the fuse blows again, repair the short to body ground on the No. A3-2 fuse circuit.?

5.

Open wire check (IG1 VSA/ABS line):

Open wire check (IG1 VSA/ABS line)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connector.

VSA modulator-control unit 46P connector

?3.	Turn the vehicle to the ON mode.

?4.

Measure the voltage between test points 1 and 2.

Test condition	Vehicle ON mode
	VSA modulator-control unit 46P connector: disconnected
Test point 1	VSA modulator-control unit 46P connector No. 13
Test point 2	Body ground

Is there battery voltage?


	YES

The IG1 VSA/ABS wire is OK. Go to step 6.


	NO

Repair an open in the wire between the VSA modulator-control unit and the No. B34 fuse.?

6.

Open wire check (+B ABS/VSA FSR line):

Open wire check (+B ABS/VSA FSR line)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Measure the voltage between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	VSA modulator-control unit 46P connector: disconnected
Test point 1	VSA modulator-control unit 46P connector No. 1
Test point 2	Body ground

Is there battery voltage?


	YES

The +B ABS/VSA FSR wire is OK. Go to step 7.


	NO

Repair an open in the wire between the VSA modulator-control unit and the No. A3-2 fuse.?

7.

Open wire check (GND line):

Open wire check (GND line)

?1.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	VSA modulator-control unit 46P connector: disconnected
Test point 1	VSA modulator-control unit 46P connector No. 4
Test point 2	Body ground

Is there continuity?


	YES

The GND wire is OK. Go to step 8.


	NO

Repair an open in the wire between the VSA modulator-control unit and body ground (G303).?

8.

F-CAN circuit communication check:

F-CAN circuit communication check

?1.

Reconnect the following connector.

VSA modulator-control unit 46P connector

?2.	Select the FUNCTION TEST in the CAN gateway with the HDS, then select the F-CAN Bus Connected Unit Check.

Which result is indicated?


	Gauge control module (Bus C) is Not Available

Go to step 9.


	VSA modulator-control unit (Bus A) is Not Available

Go to step 10.


	VSA modulator-control unit (Bus B) is Not Available

Go to step 11.


	VSA modulator-control unit and gauge control module are Detected

Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.?

9.

Open wire check (F-CAN C_H, F-CAN C_L lines):

Open wire check (F-CAN C_H, F-CAN C_L lines)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connectors.

CAN gateway 16P connector

Gauge control module connector A (32P)

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	CAN gateway 16P connector: disconnected
	Gauge control module connector A (32P): disconnected
Test point 1	CAN gateway 16P connector (female terminals) No. 5:
Test point 2	Gauge control module connector A (32P) No. 19

Test point 1	CAN gateway 16P connector (female terminals) No. 13:
Test point 2	Gauge control module connector A (32P) No. 20

Is there continuity?


	YES

The F-CAN C_H and the F-CAN C_L wires are OK. Check for loose terminals in the CAN gateway 16P connector and the gauge control module connector A (32P) connector. If they are OK, substitute a known-good gauge control module, then retest. If the indicators come on then go off after substitution, replace the original gauge control module.?


	NO

Repair an open in the wire between the gauge control module and the CAN gateway.?

10.

Open wire check (F-CAN A_H, F-CAN A_L lines):

Open wire check (F-CAN A_H, F-CAN A_L lines)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connectors.

CAN gateway 16P connector

VSA modulator-control unit 46P connector

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	CAN gateway 16P connector: disconnected
	VSA modulator-control unit 46P connector: disconnected
Test point 1	CAN gateway 16P connector (female terminals) No. 3:
Test point 2	VSA modulator-control unit 46P connector No. 20

Test point 1	CAN gateway 16P connector (female terminals) No. 11:
Test point 2	VSA modulator-control unit 46P connector No. 21

Is there continuity?


	YES

The F-CAN A_H and the F-CAN A_L wires are OK. Check for loose terminals in the VSA modulator-control unit 46P connector. If the symptom/indication is still present, replace the VSA modulator-control unit.?


	NO

Repair an open in the wire between the VSA modulator-control unit and the CAN gateway.?

11.

Open wire check (F-CAN B_H, F-CAN B_L lines):

Open wire check (F-CAN B_H, F-CAN B_L lines)

?1.	Turn the vehicle to the OFF (LOCK) mode.

?2.

Disconnect the following connectors.

CAN gateway 16P connector

VSA modulator-control unit 46P connector

?3.

Check for continuity between test points 1 and 2.

Test condition	Vehicle OFF (LOCK) mode
	CAN gateway 16P connector: disconnected
	VSA modulator-control unit 46P connector: disconnected
Test point 1	CAN gateway 16P connector (female terminals) No. 6:
Test point 2	VSA modulator-control unit 46P connector No. 24

Test point 1	CAN gateway 16P connector (female terminals) No. 14:
Test point 2	VSA modulator-control unit 46P connector No. 25

Is there continuity?


	YES

The F-CAN B_H and the F-CAN B_L wires are OK. Check for loose terminals in the VSA modulator-control unit 46P connector. If the symptom/indication is still present, replace the VSA modulator-control unit.?


	NO

Repair an open in the wire between the VSA modulator-control unit and the CAN gateway.?