Test A: Both High Beams Are Inoperative

PINPOINT TEST A: BOTH HIGH BEAMS ARE INOPERATIVE

Normal Operation
When the headlamp switch is placed in the HEADLAMPS ON position, the smart junction box (SJB) monitors the high beam request circuit from the multifunction switch through circuit CLF17 (WH/OG). When the multifunction switch is placed in the HIGH BEAM position, the signal is routed to ground through circuit GD116 (BK/VT) (which routes through a joint connector). The SJB then energizes the high beam relay (integrated into the SJB) which supplies voltage to the headlamps through circuit CLF08 (YE/VT).

This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Joint connector
- Multifunction switch
- SJB

A1:

A2-A4:

A4-A6:

A6-A7: