Test D: One Low Beam Headlamp Is Inoperative

PINPOINT TEST D: ONE LOW BEAM HEADLAMP IS INOPERATIVE

D1-D3:

D3-D5:

Normal Operation
When the smart junction box (SJB) detects the multifunction switch in the headlamps ON and in the low beam position, the SJB sends voltage through circuits 161 (DG/OG) (RH headlamp) and 160 (DB/WH) (LH headlamp) to the low beam headlamps. Circuit 57 (BK) is the ground circuit for the headlamps.

Possible Causes
- circuit 160 (DB/WH) (LH headlamp) open
- circuit 161 (DG/OG) (RH headlamp) open
- circuit 57 (BK) open
- SJB