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)