Test E: One Or More Illumination Source(s) Is Inoperative
PINPOINT TEST E: ONE OR MORE ILLUMINATION SOURCE(S) IS INOPERATIVENormal Operation
Variable voltage is supplied to the illumination source(s) from the instrument panel dimmer switch on circuit VLN18 (BU/WH). The headlamp and four wheel drive (4WD) mode switches are grounded through circuit GD161 (BK/YE). The speed control switches are grounded through circuit GD174 (BK/WH).
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Headlamp switch
- 4WD mode switch
- Speed control switch(es)
- Steering wheel control switch harness
- Clockspring