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.
Control Module
The power seat module (PSM) handles the functions of integrated diagnostics. When the control module detects a fault, a diagnostic trouble code is generated in some cases.
Any diagnostic trouble codes are stored in the control module memory. The data can be read off using the diagnostic tool.
A way to check that the power seat module (PSM) (3/26) has a power supply and is grounded is to operate the seat.
The power seat module (PSM) is inoperable if voltage is below 8.5 V or exceeds 16.0 V. The control module becomes operable again when voltage increases to over 9.0 V or drops below 15.5 V.
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.