Test A: Both High Beams Are Inoperative
PINPOINT TEST A: BOTH HIGH BEAMS ARE INOPERATIVENormal 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 GD145 (BK/BU). The SJB then supplies voltage to the high beam headlamps.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Multifunction switch
- SJB
A1:
A2-A4:
