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Test U: An Individual Fog Lamp Is Inoperative

PINPOINT TEST U: AN INDIVIDUAL FOG LAMP IS INOPERATIVE


U1:






U1-U3:






U3 Continued:






Normal Operation
When the relay is energized, voltage is sent to the fog lamps through circuits (RH) 1776 (TN/OG) and (LH) 1721 (LB/BK). The fog lamps are grounded through circuit 1205 (BK).

Possible Causes
- An open in circuit 1205 (BK), 1776 (TN/OG) or 1721 (LB/BK)
- Lamp
- Bussed electrical center (BEC)