Test A: Both Headlamps Are Inoperative

PINPOINT TEST A: BOTH HEADLAMPS ARE INOPERATIVE

A1-A4:

A4-A5:

Normal Operation
Battery voltage is supplied to the headlamp switch through circuit 196 (DB/OG). When the headlamp switch is placed in the headlamps ON position, voltage is transferred to circuit 15 (RD/YE) which supplies voltage to the multifunction switch which then directs the voltage to the low beam headlamps or to the high beam relay.

Possible Causes
- Fuse
- Circuit 15 (RD/YE) open
- Circuit 196 (DB/OG) open
- Headlamp switch
- Multifunction switch
- Central junction box (CJB)