DTC C1120-96

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DTC C1120-96 : Electric Parking Brake Switch Malfunction

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	Basic Condition: 12 volt battery voltage 9.6 - 16.5 V With the Driving Pattern: Turn the vehicle to the ON mode. Wait 5 minutes or more.
Execution	Regular Diagnosis
Duration	About 5 minutes
DTC Type	1 drive cycle Brake system indicator (red) blink Brake system indicator (amber) on
Fail Safe Action	Stop electric parking brake function (some of function)
Possible Cause	Electric parking brake/automatic brake hold switch failure VSA modulator-control unit internal failure