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.
Diagnostic Aids
If DTC does not reset after code is cleared, problem may be intermittent. While performing tests, move wires and connectors. Following conditions may also cause an intermittent malfunction:
- Intermittent open or short to ground in Dark Green or Purple wire circuits between left seat lower motor and SCM.
- An intermittent open, short to voltage or short to ground in ground wire circuit (Black wire).
- Horizontal position sensor is open or shorted internally.
If SCM is unable to determine correct horizontal position, manual power seat functions will still operate, but SCM will not be able to recall correct seat memory seat settings. Using scan tool, select SCM data display and monitor horizontal position data. Move power seat horizontally in both directions while voltage range should vary and stay between 0.10-4.78 volts depending on position of seat. This will check if horizontal position sensor is shorted in different positions.
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Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.