Test D: One Low Beam Headlamp Is Inoperative

PINPOINT TEST D: ONE LOW BEAM HEADLAMP IS INOPERATIVE

D1-D2:

D2-D3:

Normal Operation
When the headlamp switch is placed in the HEADLAMPS ON position, the smart junction box (SJB) routes voltage to the LH and RH low beams through circuits 1055 (WH/LG) and 1056 (DB/LG), respectively. Ground is provided to the headlamps through circuit 57 (BK).

Possible Causes
- Fuse
- Circuit 57 (BK) open
- Circuit 1055 (WH/LG) open
- Circuit 1056 (DB/LG) open
- SJB