Test M: The Headlamps Do Not Illuminate When The Wipers Are On

PINPOINT TEST M: THE HEADLAMPS DO NOT ILLUMINATE WHEN THE WIPERS ARE ON

M1:

M1-M3:

Normal Operation
If equipped with automatic headlamps, the smart junction box (SJB) will illuminate the exterior lamps, including the parking lamps, when the front wipers are on for more than 10 seconds. The SJB monitors the front wiper motor on circuit CRW22 (WH/BU).

Possible Causes
- Circuit CRW22 (WH/BU) open or short to ground
- Windshield wiper motor
- SJB