Steering Angle Sensor: Service and Repair

STEERING WHEEL SENSOR
REMOVAL AND INSTALLATION

INSTALLATION SERVICE POINT
>>A<< STEERING WHEEL SENSOR INITIALIZATION
When the battery is removed, the neutral point of the steering wheel sensor will be erased, the Active skid control system OFF indicator light will illuminates and DTC 83 (ST NO ADJ) will be set. In this case, make the steering wheel sensor learn the neutral point by following one of the procedures.

Using scan tool MB991958





1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Turn the steering wheel 8° or more, and then return it to the neutral (straight forward) position.
4. Execute item No.14 "ST SNSR: 0" on the Actuator test.
5. Ensure that the Active skid control system OFF indicator light is off.
6. Turn the ignition switch to the "LOCK" (OFF) position.
7. Disconnect scan tool MB991958.

Not using scan tool MB991958

CAUTION: If a different diameter or size of tires are equipped, the M-ASTC-ECU may not learn the neutral position.

1. Turn the steering wheel 8° or more, and then return the steering wheel to straight-ahead position.
2. Drive the vehicle straight forward at 35 km/h (25 mph) for approximately one second.
3. Ensure that the Active skid control system OFF indicator light is off.