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
Freeze Frame
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
Freeze Frame
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. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?
2.
Open wire check (EPB L ACT+, EPB L ACT-, EPB R ACT+, EPB R ACT- lines):

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

?2.
Disconnect the following connectors.
VSA modulator-control unit 46P connector
Appropriate electric parking brake actuator 4P connector

?3.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
VSA modulator-control unit 46P connector: disconnected
 
Appropriate electric parking brake actuator 4P connector: disconnected

DTC
Test point 1
Test point 2
C1110-13
VSA modulator-control unit 46P connector No. 8
Left electric parking brake actuator 4P connector (female terminals) No. 1:
VSA modulator-control unit 46P connector No. 7
Left electric parking brake actuator 4P connector (female terminals) No. 2:
C1111-13
VSA modulator-control unit 46P connector No. 5
Right electric parking brake actuator 4P connector (female terminals) No. 1:
VSA modulator-control unit 46P connector No. 6
Right electric parking brake actuator 4P connector (female terminals) No. 2:


Is there continuity?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
Repair an open in the wire between the VSA modulator-control unit and the appropriate electric parking brake actuator.?
3.
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 4P 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
Freeze Frame
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