C1235 FORD, LINCOLN, MAZDA, MERCURY: RIGHT REAR WHEEL SPEED SENSOR INPUT SIGNAL MISSING
POST UPDATED IN June, 2023
C1235 FORD, LINCOLN, MAZDA, MERCURY: RIGHT REAR WHEEL SPEED SENSOR INPUT SIGNAL MISSING
The ABS Module (Anti-lock Brake System Module) receives readings indicating wheel speed and this information is sent by each Wheel Speed Sensor. With this data, the module can determine if ABS functions need to be performed. If the module detects impending wheel lockup, it regulates the braking pressure to the appropriate brake caliper
A Wheel Speed Sensor has the function of detecting the magnetic field of the sensor ring as it passes over the sensor face while in operation. The sensor circuit is connected to the ABS Module via two wires and a connector for each sensor. When the ignition is placed in the RUN position, the ABS Module performs a series of self-tests by sending a reference voltage to all sensors through its circuitry to determine if they are functioning properly.
C1235 OBD2 diagnostic code is set on Ford, Lincoln, Mazda, and Mercury vehicles when the Right Rear Wheel Speed Sensor input signal is detected to be missing.
DTC C1235 OBDII is set by the following:
In order to troubleshoot the C1235 OBDII fault code you must do the following: