C1241

(Part 1 Of 2):

(Part 2 Of 2):

CIRCUIT DESCRIPTION
This DTC is designed to detect a slipping right front ESB. During initialization and braking, the right front motor is rehomed. If the ESB slips, the motor/piston will move. During the next ABS initialization, a rehome of the motor verifies the motor/piston remained at the home position. If motor movement is detected, the ESB must be slipping.

CONDITIONS FOR SETTING THE DTC
DTC C1241 can be set during initialization. DTC C1286 is always set with DTC C1241.

ACTION TAKEN WHEN THE DTC SETS
If an ESB cannot hold a motor in the home position, the motor may be back driven when the brake pedal is applied causing the brake pedal to drop. A malfunction DTC is stored, ABS is disabled and the ABS indicator lamp is turned ON.

CONDITIONS FOR CLEARING THE DTC
Conditions for the malfunction are no longer present and the scan tool CLEAR DTCs function is used. One hundred ignition switch key cycles have passed with no malfunctions detected.

DIAGNOSTIC AIDS
An intermittent malfunction in this DTC may result from a mechanical part of the system that sticks, binds, or slips.

The frequency of the malfunction can be checked by using the ENHANCED DIAGNOSTIC function of the scan tool.