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.
Checking input signal
Read off the value for Hall sensor 4.
The value should not change when the seat is not affected.
HINT: If the value counts up or down there may be a fault in the sensor, an intermittent short-circuit to supply voltage or an internal fault in the power seat module (PSM).
Remedy as necessary.
Other information:
- To access Hall sensor 4, see Height adjustment motor, front .
- To connect the breakout box, see Connecting the breakout box, power seat module (PSM) .
- For information on signals, refer to Signal specification, Power seat module .
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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.