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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1730 (Lighting Systems) >> Diagnostic Information and Procedures >> Dome Lamps Inoperative

Dome Lamps Inoperative

WARNING: This page is about a different car, the 2003 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 Lighting System Diagnostic System Check? Go to Step 2  Go to Diagnostic System Check - Lighting Systems 
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 in Wiring Systems 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 in Wiring Systems.
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 in Wiring Systems.
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 in Wiring Systems.
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