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HOMESERVICE MANUALSPONTIAC2006G6 GTP, 2D COUPE, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 972 (LIGHTING SYSTEMS)DIAGNOSTIC INFORMATION AND PROCEDURESINTERIOR BACKLIGHTING DOES NOT DIM
2006 Pontiac G6 GTP, 2D Coupe, Standard

Interior Backlighting Does Not Dim

2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Interior Backlighting Does Not Dim
WARNING: This page is about a different car, the 2007 Pontiac Montana SV6, 2007 Chevrolet Uplander, and 2007 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
Interior Backlighting Does Not Dim

Step Action Yes No
Schematic Reference: Interior Lights Dimming Schematics 
Connector End View Reference: Master Electrical Component List
1 Did you perform the Diagnostic System Check - Vehicle? Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Turn ON the ignition, with the engine OFF.
  2. Turn the headlamps ON.
  3. Place the instrument panel (I/P) lamp dimmer switch in the full bright position, then slowly to the full dim position.
Do the dimming lamps operate normally?		 Go to Testing for Intermittent Conditions and Poor Connections Go to Step 3 
3 Test the I/P dimming reference voltage and I/P dimming control circuits of the headlamp switch for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 7  Go to Step 4 
4 Test for a short to battery positive voltage in the I/P lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 7  Go to Step 5 
5 Inspect for poor connections at the harness connector of the headlamp switch. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?		 Go to Step 7  Go to Step 6 
6 Replace the headlamp switch. Refer to Headlamp Switch Replacement .
Did you complete the replacement?		 Go to Step 7  -
7 Operate the system in order to verify the repair.
Did you correct the condition?		 System OK Go to Step 4 
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.