Scantool Diagnostics

AHLS (Auto Headlamp Leveling System)

C1212 Vehicle Speed Sensor Failure - Scantool Diagnostics

Scantool Diagnostics

1. Connect scantool and Engine "ON".
2. Select "Vehicle Speed" parameter on the scantool.

NOTE:
(check wheel speed output value at ABS (VDC) system. And, check vehicle speed at ECM and Air conditioner system.)

3. Check the "vehicle speed' parameter on the scantool.

Specification : It is changeable according to vehicle speed.








Fig.1) Engine ON, 6 km/h status after starting - AHLS.
Fig.2) Engine ON, Idle status after starting - VDC, Idle status after starting - Air conditioner system
4. Are all the parameters normal?