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Test B: Both Low Beams Are Inoperative

PINPOINT TEST B: BOTH LOW BEAMS ARE INOPERATIVE

Normal Operation
When the headlamp switch is placed in the HEADLAMPS ON position, the multifunction switch routes voltage to the smart junction box (SJB) through circuit CLF18 (BU/WH). The SJB then routes voltage to the LH and RH low beams.

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


B1-B3:






B4: