Pinpoint Test C: C2005:77 Or C2006:77: Notes
Refer to VEHICLE DYNAMIC SYSTEMS for schematic and connector information.
Normal Operation and Fault Conditions
When the ABS module receives a parking brake apply or release request, the ABS module sends voltage to the parking brake actuator motors. The ABS module also monitors the current draw of the actuator motors to determine when the brake pads contact the brake disc, to determine when the appropriate amount of clamping force is being applied to the brake disc and to determine when the brake pads are retracted to their start position. The actuator motors have a serviceable jumper harness connecting the actuator motors to the body harness at C422.
REFER to: Parking Brake - System Operation and Component Description .
DTC Fault Trigger Conditions
| DTC | Description | Fault Trigger Condition |
|---|---|---|
| ABS C2005:77 | Right Actuator: Commanded Position Not Reachable | This DTC sets in continuous memory and on-demand if during an apply or release command, the ABS module detects an irregular current draw. |
| ABS C2006:77 | Left Actuator: Commanded Position Not Reachable | This DTC sets in continuous memory and on-demand if during an apply or release command, the ABS module detects an irregular current draw. |
Possible Sources
- Wiring, terminals or connectors
- Brake fluid leak
- Parking brake actuator motor
- Rear brake caliper