Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN K2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1157 (POWER SEAT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESPOWER SEAT INOPERATIVE (W/MEMORY)CIRCUIT/SYSTEM VERIFICATION
2006 Chevrolet Suburban K2500, 6.0 U
Circuit/System Verification
2006 Chevrolet Suburban K2500, 6.0 USECTION Circuit/System Verification
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Install a scan tool and display the MSM switch inputs.
- Verify that none of the power seat switch parameters are Active while in an inactive state.
- If not the specified value, refer to the Power Seat Switch Circuit Test below.
- Verify that the power seat switch parameters are Active while the switch is pressed.
- If not the specified value, refer to the Power Seat Switch Circuit Test below.
- Verify that none of the lumbar switch parameters are Active while in an inactive state.
- If not the specified value, refer to the Lumbar Switch Circuit Test below.
- Verify that the lumbar switch parameters are Active while the switch is pressed.
- If not the specified value, refer to the Lumbar Switch Circuit Test below.
- If the switch inputs to the MSM function normal, refer to the affected Motor Control Circuit Test below.
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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.