DTC Advanced Diagnostics: C1100-48
DTC C1100-48: Electric Parking Brake Abnormal Operation Monitoring
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:
Wheel speed is less than 2 mph (3 km/h)

With the Driving Pattern:
1.
Turn the vehicle to the ON mode.
2.
Apply and release the parking brake several times.
3.
Wait 30 seconds or more.
Execution
Regular Diagnosis
Duration
About 30 seconds
DTC Type
1 drive cycle
Brake system indicator (red) blink
Brake system indicator (amber) on
Fail Safe Action
Stop automatic brake hold function
Stop manual operating function
Stop automatic operating function (Drive away assist)
Stop automatic operating function (Request from other system)
Stop ignition OFF apply function
Stop ACC function*
Stop CMBS function*
Possible Cause
VSA modulator-control unit internal failure
*: With ACC