Test D: One High Beam Headlamp Is Inoperative

PINPOINT TEST D: ONE HIGH BEAM HEADLAMP IS INOPERATIVE

D1:

D1-D3:

D3-D4:

Normal Operation
Under normal operation, when the headlamps are turned ON and the high beams selected, the SJB sends voltage to the headlamp high beams through 1337 (VT/YE). Ground for the headlamp high beams is provided through circuit 1205 (BK).

Possible Causes
- An open in circuit 1205 (BK) or 1337 (VT/YE)
- Lamp
- Smart junction box (SJB)