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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different car >> Section 650 (Lighting Systems) >> Diagnostic Information and Procedures >> Reading Lamp(s) Inoperative

Reading Lamp(s) Inoperative

WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Reading Lamp(s) Inoperative

Step Action Yes No
Schematic Reference: Interior Lights Schematics 
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to DIAGNOSTIC SYSTEM CHECK - VEHICLE
2 Do the reading lamps operate properly with the lamp switches? Go to Step 7  Go to Step 3 
3 Is only one reading lamp inoperative? Go to Step 4  Go to Step 5 
4
  1. Inspect the power supply, ground circuit, and switch for a poor connection or an open in the inoperative lamp circuit. Refer to Circuit Testing .
  2. Repair the poor connection or open in the inoperative lamp circuit. Refer to Wiring Repairs .
  3. If no fault is found, replace the inoperative lamp.
Did you complete the repair?
Go to Step 11  -
5
  1. Disconnect the reading lamp switch connector.
  2. Test for a high resistance or an open in the ground circuit at the reading lamp switch connector. Refer to Circuit Testing and Wiring Repairs .
Is ground present?
Go to Step 6  Go to Step 8 
6 Test for a high resistance or an open in the inadvertent power control circuit between the reading lamp assembly and the body control module (BCM). Refer to Circuit Testing and Wiring Repairs .
Was a condition found and corrected?
Go to Step 11  Go to Step 9 
7 Test for a high resistance or an open in the interior control circuit between the reading lamp assembly and the BCM. Refer to Circuit Testing and Wiring Repairs .
Was a condition found and corrected?
Go to Step 11  Go to Step 10 
8 Repair the open in the ground circuit for the reading lamp switch. Refer to Wiring Repairs .
Did you complete the repair?
Go to Step 11  -
9 Replace the reading lamp assembly.
Did you complete the repair?
Go to Step 11  -
10 Replace the BCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
Go to Step 11  -
11 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 3