Test A: Both Headlamps Are Inoperative
PINPOINT TEST A: BOTH HEADLAMPS ARE INOPERATIVEA1-A2:
A2-A5:
Normal Operation
The headlamp switch receives voltage from the battery junction box (BJB) fuse 15 (30A) through circuit 196 (DB/OG). When the headlamp switch is placed in the headlamps ON position, voltage is routed to the multifunction switch through circuit 15 (RD/YE). The multifunction switch then routes the voltage through the central junction box (CJB) to the headlamps for the low beams or high beams. The headlamps share a common ground through circuit 57 (BK).
Possible Causes
- Fuse
- Circuit 15 (RD/YE) open
- Circuit 57 (BK) open
- Circuit 196 (DB/OG) open
- Headlamp switch
- Multifunction switch