Circuit/System Verification
- Ignition ON, observe the scan tool Dimming Control Signal parameter while operating the dimmer switch from high to low. The parameter should change from a high percent to a low percent as the switch is activated.
- If the parameter does not change, refer to DIMMER SWITCH MALFUNCTION .
- Command the Incandescent Dimming ON and OFF with a scan tool. The incandescent backlighting should illuminate from high to low.
- If the backlighting does not operate as described, refer to INTERIOR BACKLIGHTING MALFUNCTION .
- Command the LED Dimming ON and OFF with a scan tool. The LED backlighting should illuminate from high to low.
- If the backlighting does not operate as described, refer to INTERIOR BACKLIGHTING MALFUNCTION .