FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Test D: One High Beam Headlamp Is Inoperative

PINPOINT TEST D: ONE HIGH BEAM HEADLAMP IS INOPERATIVE

Normal Operation
When the smart junction box (SJB) detects the headlamp switch in the HEADLAMPS ON position and the multifunction switch in the HIGH BEAM position, the SJB energizes an internal relay which routes voltage through circuit CLS08 (VT/GN) to the high beam headlamps. Ground is supplied on circuits GD121 (BK/YE) and GD123 (BK/GY) for the LH and RH high beam headlamps, respectively.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Headlamp assembly


D1:






D1-D2: