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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1799 (Lighting System) >> Diagnostic Information and Procedures >> Dome Lamps Inoperative

Dome Lamps Inoperative

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Dome Lamps Inoperative

Step Action Yes No
Schematic Reference: Interior Lights Schematics 
DEFINITION: Only the dome lamp is inoperative.
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2 Place the instrument panel dimmer switch in the ON position.
Does the dome lamp illuminate?
Go to Testing for Intermittent Conditions and Poor Connections Go to Step 3 
3
  1. Disconnect the dome lamp assembly.
  2. Probe the courtesy lamp supply voltage circuit with a test lamp that is connected to a good ground.
Does the test lamp illuminate?
Go to Step 4  Go to Step 6 
4 Connect the test lamp between the courtesy lamp supply voltage circuit and the courtesy lamp low control circuit.
Does the test lamp illuminate?
Go to Step 5  Go to Step 7 
5 Inspect for poor connections at the harness connector of the dome lamp assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .
Did you find and correct the condition?
Go to Step 9  Go to Step 8 
6 Repair an open, high resistance, or short to ground in the courtesy lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs .
Did you complete the repair?
Go to Step 9  -
7 Repair an open or high resistance in the courtesy lamp low control circuit. Refer to Circuit Testing and Wiring Repairs .
Did you complete the repair?
Go to Step 9  -
8 Replace the dome lamp assembly. Refer to Dome Lamp Replacement .
Did you complete the replacement?
Go to Step 9  -
9 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3