DTC Troubleshooting: C1110-13, C1111-13
DTC C1110-13: Left Rear Electric Parking Brake Actuator Circuit Open
DTC C1111-13: Right Rear Electric Parking Brake Actuator Circuit Open
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
DTC
C1110-13 Left Rear Electric Parking Brake Actuator Circuit Open
  
C1111-13 Right Rear Electric Parking Brake Actuator Circuit Open
  

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

?4.
Apply and release the parking brake several times.

?5.
Check for DTCs with the HDS.
DTC Description
DTC
C1110-13 Left Rear Electric Parking Brake Actuator Circuit Open
  
C1111-13 Right Rear Electric Parking Brake Actuator Circuit Open
  

Is DTC C1110-13 or C1111-13 indicated?

     
YES
     
     
     
The failure is duplicated. Go to step 2.
     
NO
     
     
     
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.?
2.
Power source check:

Power source check
?1.
Check the parameter(s) below with the HDS.
Signal
Current conditions
Values
Unit
Left Parking Brake Actuator Motor Supply Voltage
    
Right Parking Brake Actuator Motor Supply Voltage
    

Is there battery voltage indicated?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
Go to step 5.
3.
Open wire check (EPB L ACT+, EPB L ACT-, EPB R ACT+, or EPB R ACT- lines):

Open wire check (EPB L ACT+, EPB L ACT-, EPB R ACT+, or EPB R ACT- lines)
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Disconnect the following connectors.
Appropriate electric parking brake actuator 2P connector
VSA modulator-control unit 46P connector

?3.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Appropriate electric parking brake actuator 2P connector: disconnected
 
VSA modulator-control unit 46P connector: disconnected

DTC
Test point 1
Test point 2
C1110-13
Left electric parking brake actuator 2P connector (female terminals) No. 1:
VSA modulator-control unit 46P connector No. 8
Left electric parking brake actuator 2P connector (female terminals) No. 2:
VSA modulator-control unit 46P connector No. 7
C1111-13
Right electric parking brake actuator 2P connector (female terminals) No. 1:
VSA modulator-control unit 46P connector No. 5
Right electric parking brake actuator 2P connector (female terminals) No. 2:
VSA modulator-control unit 46P connector No. 6


Is there continuity?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Repair an open in the wire between the VSA modulator-control unit and the appropriate electric parking brake actuator.?
4.
Electric parking brake actuator check:

Electric parking brake actuator check
?1.
Substitute a known-good electric parking brake actuator.

?2.
Reconnect the following connectors.
VSA modulator-control unit 46P connector
Appropriate electric parking brake actuator 2P connector

?3.
Turn the vehicle to the ON mode.

?4.
Clear the DTC with the HDS.


?5.
Turn the vehicle to the OFF (LOCK) mode, then to the ON mode.

?6.
Apply and release the parking brake several times.

?7.
Check for DTCs with the HDS.
DTC Description
DTC
C1110-13 Left Rear Electric Parking Brake Actuator Circuit Open
  
C1111-13 Right Rear Electric Parking Brake Actuator Circuit Open
  

Is DTC C1110-13 or C1111-13 indicated?

     
YES
     
     
     
Check for loose terminals and poor connections in the VSA modulator-control unit 46P connector. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting. If they are OK, replace the VSA modulator-control unit.?
     
NO
     
     
     
5.
Fuse check:

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

?2.
Check the following fuse.
Fuse
No. A3-2 (40 A)
Location
Under-hood fuse/relay box

Is the fuse OK?

     
YES
     
     
     
The fuse is OK. Reinstall the fuse. Repair an open in the wire between the VSA modulator-control unit and the under-hood fuse/relay box.?
     
NO
     
     
     
Replace the fuse. If the fuse blows again, repair a short to body ground in the No. A3-2 (40 A) fuse circuit.?