DTC C1C21-62

DTC C1C21-62: Reverse Information Failure (Stuck)

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.

Confirmation Procedure	Operating Condition: Turn the vehicle to the READY TO DRIVE mode. Test-drive the vehicle at 37 mph (60 km/h) or more for at least 3 seconds. Drive in reverse. Repeat steps 2 and 3, three times. (Drive the vehicle on the road, not on a lift. Be careful of the surrounding traffic conditions.)
Execution	Regular Diagnosis
Duration	About 3 seconds
DTC Type	1 drive cycle Brake system indicator (amber) on VSA indicator on
Fail Safe Action	Stop electric parking brake function (some of function)
Possible Cause	Gear system failure VSA modulator-control unit internal failure