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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1513 (Lighting Systems) >> Diagnostic Information and Procedures >> Rearview Mirror Lamp(s) Inoperative - Inside

Rearview Mirror Lamp(s) Inoperative - Inside

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Rearview Mirror Lamp(s) Inoperative - Inside

Step Action Yes No
Schematic Reference: Interior Lights Schematics 
Connector End View Reference: Master Electrical Component List
1 Did you perform the Lighting Systems Diagnostic Systems Check? Go to Step 2  Go to Diagnostic System Check - Lighting Systems 
2 Turn ON the rearview mirror reading lamps.
Do the lamps illuminate?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Does the I/P compartment lamp, underhood lamp, and vanity mirror lamp operate normally? Go to Step 4  Go to Instrument Panel (I/P) Compartment Lamp Inoperative 
4
  1. Disconnect the inside rearview mirror.
  2. Probe the switched battery positive voltage supply circuit of the inside rearview mirror reading lamp with the test lamp connected to ground.
Does the test lamp illuminate?
Go to Step 5  Go to Step 6 
5 Connect a test lamp between the switched battery positive voltage feed circuit of the inside rearview mirror reading lamp and the ground circuit.
Does the test lamp illuminate?
Go to Step 8  Go to Step 7 
6 Repair the poor connection or the open in the switched battery positive voltage feed circuit of the inside rearview mirror reading lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 9  -
7 Repair the poor connection or the open in the ground circuit of the inside rearview mirror reading lamp. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 9  -
8 Replace the inside rearview mirror. Refer to Rearview Mirror 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