Power Seat Inoperative

2004 Pontiac GTO StandardSECTION Power Seat Inoperative
Power Seat Inoperative

Step Action Yes No
Schematic Reference:  Power Seats Schematics (Pre VIN6G2VX12G74L253068)   and  Power Seats Schematics (Post VIN6G2VX12G74L253068)  
DEFINITION: This test is used by the technician to aid in the diagnosis of the seat power and ground circuits, if neither seat operates when either seat adjustment switch is operated.
1 Did you review the Power Seats System Description and Operation  and perform the necessary inspections? Go to Step 2  Go to Power Seats System Description and Operation 
2 Verify the fault is present.
Does the system operate normally?
Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems Go to Step 3 
3 Check the battery voltage. Refer to Measuring Voltage in Wiring Systems.
Is the battery voltage more than 11.5 volts?
Go to Step 4  Go to Battery Inspection/Test in Engine Electrical
4 Check the battery voltage supply circuit to the seat modules with a test lamp connected to a known good ground. Refer to Measuring Voltage in Wiring Systems.
Does the test lamp illuminate?
Go to Step 5  Go to Step 6 
5 Ensure all seat ground points are secure and have good contact with the vehicle structure.
Are all the ground points secure to the vehicle with good contact?
Go to Step 7  Go to Step 8 
6 Repair an open in the battery voltage supply circuit between the vehicle battery and the seat modules. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 9  -
7 Repair and open in the seat module ground circuit. Refer to Wiring Repairs in Wiring Systems.
Did you complete the repair?
Go to Step 9  -
8 Tighten all ground points.
Did you complete the repair?
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 
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.