F 150 2WD V8-5.4L Flex Fuel (2008)
D3-D5
Test E: An Individual Demand Lamp Is Inoperative
PINPOINT TEST E: AN INDIVIDUAL DEMAND LAMP IS INOPERATIVE
Normal Operation
The instrument cluster (IC) energizes the battery saver relay located in the central junction box (CJB), through circuit 1005 (VT/OG). The battery
saver relay provides voltage to circuit 705 (LG/OG). Circuit 705 (LG/OG) provides voltage to all demand lamps. The demand lamps are grounded
through circuit 57 (BK). The battery saver deactivates when the IC releases the ground from the relay on circuit 1005 (VT/OG), after time-out.
This pinpoint test is intended to diagnose the following:
-
Wiring, terminals or connectors
-
Interior lamp
