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Test E: One High Beam Headlamp Is Inoperative

PINPOINT TEST E: ONE HIGH BEAM HEADLAMP IS INOPERATIVE


E1-E3:






E4-E5:






Normal Operation
When the smart junction box (SJB) detects the multifunction switch in the headlamps ON and in the HIGH BEAM position, the SJB sends voltage through circuits 1779 (DB/LG) (RH headlamp) and 1724 (WH/LG) (LH headlamp) to the high beam headlamps. Circuit 57 (BK) is the ground circuit for the headlamps.

Possible Causes
- Circuit 1724 (WH/LG) (LH headlamp) open or short to ground
- Circuit 1779 (DB/LG) (RH headlamp) open or short to ground
- Circuit 57 (BK) open
- SJB