Component Inspection

Automatic Headlamp Leveling System

C1255 Rear Height Sensor - Component Inspection

Component Inspection

Check Status of Linkage of height sensor
1. Check the separation or faulty assemblage of linkage of height sensor with the vehicle lifted.




Fig.1.2) Component : Height sensor.
2. Has the problem found?





Check ECU (AHLS)
1. Engine "ON" and Head lamp"ON"
2. Lift the vehicle.
3. Disconnect the linkage of height sensor.
4. Monitor the "SENSOR ANGLE" Parameter on the Scantool while moving linkage vertically.
5. Is there any change in "SENSOR ANGLE" Parameter?






CAUTION:
Perform Vehicle Selection and Level Initialization with scantool if AHLS ECM is replace. (Auto Levelling Sensor)