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 MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISBODY & FRAMESEATSPOWER SEAT SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESMEMORY SEAT FEATURE INOPERATIVECOMPONENT TESTING
2009 Chevrolet Tahoe Base, 4.8 C
Component Testing
2009 Chevrolet Tahoe Base, 4.8 CSECTION Component Testing
Memory Switch
- Disconnect the X4 harness connector at the door lock/window switch.
- Test for infinite resistance between the signal circuit terminal 5 and the 12 V reference circuit terminal 14 with the switch in the open position.
- If not the specified value, replace the memory switch.
- Test the resistance between terminal 5 and terminal 14 while pressing the memory 1, memory 2, and EXIT buttons. Compare the resistance readings to the values in the Memory Switch Values table below.
- If the resistance is not within the specified range, replace the memory switch.
Memory Switch Values
| Switch Position | Resistance |
|---|---|
| Idle | Infinite |
| Memory 1 | 2.03 k - 2.49 kΞ© |
| Memory 2 | 3.83 k - 4.69 kΞ© |
| Exit | 9.32 k- 10.18 kΞ© |
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.