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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 808 (Lighting Systems) >> Diagnostic Information and Procedures >> Fog Lamps Always On

Fog Lamps Always On

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
Fog Lamps Always On

Step Action Yes No
Schematic Reference: Fog Lights Schematics 
Connector End View Reference: Master Electrical Component List
DEFINITION: Use this chart if either the front or the rear fog lamps are ON all of the time.
1 Did you perform the Lighting System Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Lighting Systems 
2
  1. Turn the ignition to the ON position.
  2. Press the fog lamp switch to the OFF position.
Are the fog lamps off?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Remove the fog lamp relay.
Do the fog lamps turn OFF?
Go to Step 5  Go to Step 4 
4
  1. Reinstall the fog lamp relay.
  2. Test for a short to battery positive voltage on the fog lamp switched battery positive voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 8  Go to Step 7 
5 Test for a short to ground in the fog lamp relay control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and current the condition?
Go to Step 8  Go to Step 6 
6 Replace the fog lamp relay. Refer to Relay Replacement (Within an Electrical Center) or Relay Replacement (Attached to Wire Harness) in Wiring Systems.
Did you complete the replacement?
Go to Step 8  -
7 Replace the underhood fuse block. Refer to Underhood Electrical Center or Junction Block Replacement in Wiring Systems.
Did you complete the replacement?
Go to Step 8  -
8 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2