ELECTRONIC STABILITY CONTROL INTEGRATED PROGRAM (ESCi) 13 1.4 ON VEHICLE REPAIRS NOTE Refer ABS “REPAIRS” sections for the removal of ECU, Wheel speed sensors and HCU. STEERING ANGLE SENSOR REMOVAL 1. Switch of the Ignition and disconnect the battery. 2. Remove the steering wheel and its lower cover. (For procedures refer steering section). 3. Remove the upper and lower nacelle. (For procedure refer combi-switch removal in Electrical section). 4. Disconnect all electrical connections to the clock spring and Steering Angle Sensor. 5. Remove four mounting screws of clock spring and take out the clock spring. (Refer SRS section). 6. Loosen and remove five mounting screws of steering angle sensor. 7. Take out steering angle sensor from its locators. INSPECTION Inspect the steering angle sensor and replace found in following conditions If the connecter is damaged, scratched or cracked. If the sensor has been dropped. If surface of the sensor is cracked, dented or chipped off. ELECTRICAL SUPPLY INSPECTION 1. Disconnect the SAS electrical connector and measure the voltage between pins 3 and 4 on harness side connecter with Ignition ON. 2. The voltage should be approximately 12V (battery voltage). If not then check the wiring harness. NOTE SAS output can be checked using the diagnostic tool in the SAS calibration option (Start Test) and then clicking on ‘Steering Wheel Angle Position’. REFITMENT For refitment follow the reverse procedure of removal. First locate the locators. Tighten the mounting screws to a torque of 0.03 Kg-m. CAUTION The steering angle sensor should be calibrated when it is removed and refitted. If this is not done the system may malfunction. Refer ABS Diagnostic tool user manual for details. If proper locking between clock spring and SAS is not there ESCi might log faults.
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