Dimming Level Switch Failure

Test 1 - 2:

Test 3 - 7:

Test 8 - 12:

Test 13:

SYMPTOM
DIMMING LEVEL SWITCH FAILURE

WHEN MONITORED
Continuously.

SET CONDITION
The BCM detects an open or short circuit condition for 10 seconds on the dimming level switch input.

POSSIBLE CAUSES
- Body control module
- Body control module
- Body control module
- Open headlamp switch return circuit
- Panel lamp dimmer signal circuit shorted to ground
- Check the panel lamp dimmer signal circuit for a short to voltage
- Open panel lamp dimmer signal circuit
- Panel lamp dimmer signal circuit shorted to the headlamp switch return circuit
- Panel lamp dimmer signal circuit shorted to voltage
- Body control module
- Body control module
- With the DRB observe the dimming level voltage with headlamp switch disconnected