DTC Troubleshooting: C1110-79, C1111-79

DTC C1110-79: Left Side Electric Parking Brake Doesn't Work Correctly
DTC C1111-79: Right Side Electric Parking Brake Doesn't Work Correctly

NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description	DTC	Freeze Frame
C1110-79 Left Side Electric Parking Brake Doesn't Work Correctly
C1111-79 Right Side Electric Parking Brake Doesn't Work Correctly

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
C1110-79 Left Side Electric Parking Brake Doesn't Work Correctly
C1111-79 Right Side Electric Parking Brake Doesn't Work Correctly

Is DTC C1110-79 or C1111-79 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.?

Rear brake component parts check (brake caliper, brake pad, brake disc, and electric parking brake actuator):

Rear brake component parts check (brake caliper, brake pad, brake disc, and electric parking brake actuator)

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

?2.	Check that the appropriate rear brake component parts are properly mounted.

Is the rear brake component parts installation OK?


	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

Reinstall the rear brake component parts, and recheck its mounting position, then go to step 1.