C1216

DTC C1216





Circuit Description
The EBCM monitors the On/Off state of each solenoid and recognizes when the ABS is in pressure decrease too long. This fault indicates that the EBCM was unable to decrease brake pressure enough to a certain wheel to prevent excessive wheel slip.

Conditions for Running the DTC
^ The ABS is active.
^ The wheel speed is less than 5 km/h (3 mph).

Conditions for Setting the DTC
The solenoid of the wheel is releasing for greater than 1 second.

Action Taken When the DTC Sets
If equipped, the following actions occur:
^ The EBCM disables the ABS for the duration of the ignition cycle.
^ The EBCM disables the TCS (w/NW9) for the duration of the ignition cycle.
^ The ABS indicator turns ON.
^ The Traction Off indicator turns ON.

Conditions for Clearing the DTC
^ The condition for the DTC is no longer present and you used the scan tool Clear DTC function.
^ The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids
Possible causes of this DTC are the following conditions:
^ A contaminated hydraulic unit.
^ An intermittent wheel speed sensor.
^ A sticking solenoid.
^ Excessive brake drag or high resistance in base brake system.
^ Suspension system irregularities.