Test C: One High Beam Headlamp Is Inoperative

PINPOINT TEST C: ONE HIGH BEAM HEADLAMP IS INOPERATIVE

C1-C3:

C3-C4:

Normal Operation
When a request for the high beams is received by the lighting control module (LCM), the LCM provides voltage through circuits 1337 (VT/YE) and 1335 (YE/WH) to the LH and RH headlamps, respectively. Ground is provided through circuit 57 (BK).

Possible Causes
- Circuit 57 (BK) open
- Circuit 1337 (VT/YE) open or short to ground
- Circuit 1335 (YE/WH) open or short to ground
- LCM