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 MANUALSVOLVO2007XC90 AWD L6-3.2L VIN 98 B6324SREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSPSM CODES (POWER SEAT MODULE)PSM-0002INTERMITTENT FAULTFAULTY SIGNAL
2007 Volvo XC90 AWD L6-3.2L VIN 98 B6324S
Faulty Signal
2007 Volvo XC90 AWD L6-3.2L VIN 98 B6324SSECTION Faulty Signal
Faulty signal. Intermittent fault
Checking cable
Check the power seat module (PSM) and motor connector for contact resistance and oxidation according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals and loose connections according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals.
The Hall sensor is integrated in the motor.
Check the wiring between the power seat module (PSM) and the sensor according to the table below for an intermittent open-circuit according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals , an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals and an intermittent short-circuit to supply voltage according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals.
Other information:
- To connect the breakout box, see Connecting the breakout box, power seat module (PSM) Connecting the Breakout Box, Power Seat Module (PSM).
- For information on signals, refer to Signal specification, Power seat module Signal Specification, Power Seat Module (PSM).
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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.