Test Description

2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Test Description
WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

The number below refers to the step number on the diagnostic table.

  1. 3:  The rear passenger power window switches on the master switch share common accessory voltage and ground circuits with the front windows. If the rear passenger power windows operate properly from the master switch the accessory voltage and ground circuits can be presumed good.
Power Windows Inoperative - One (Front Power Windows)

Step Action Yes No
Schematic Reference: Power Window Schematics 
Connector End View Reference: Power Door Systems Connector End Views 
1 Did you review the Power Windows Description and Operation? Go to Step 2  Go to Symptoms - Doors 
2
  1. Turn ON the ignition, with the engine OFF.
  2. Operate the front power windows from the front power window switch.
Do the front power windows operate properly?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
Operate the rear passenger windows from the front power window switch.
Do the rear passenger windows operate properly?
Go to Step 4  Go to Power Windows Inoperative - All 
4
  1. Disconnect the inoperative front power window motor.
  2. Connect a test lamp to a good ground.
  3. Probe the power window motor up circuit at the power window motor harness connector.
  4. Activate the power window switch in the up direction.
Does the test lamp illuminate?
Go to Step 5  Go to Step 7 
5
  1. With the test lamp still connected to a good ground, prove the power window motor down circuit at the power window motor harness connector.
  2. Activate the power window switch in the down direction.
Does the test lamp illuminate?
Go to Step 6  Go to Step 8 
6
  1. Connect a test lamp between the power window motor up and down circuits at the power window motor harness connector.
  2. Activate the power window switch in the up and down directions.
Does the test lamp illuminate in both directions?
Go to Step 10  Go to Step 9 
7 Test the power window motor up circuit for an open or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 13  Go to Step 9 
8 Test the power window motor down circuit for an open or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
Did you find and correct the condition?
Go to Step 13  Go to Step 10 
9 Inspect for poor connections at the front power window switch. 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 13  Go to Step 11 
10 Inspect for poor connections at the power window motor. 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 13  Go to Step 12 
11 Replace the power window master switch. Refer to Power Window Switch Replacement .
Did you complete the repair?
Go to Step 13  -
12 Replace the power window motor.
Did you complete the repair?
Go to Step 13  -
13 Operate the system in order to verify the repair.
Did you correct the condition?
System OK Go to Step 2 
RENDER: 1.0x

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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.