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.
2007 Volvo V50 Base, 2.4 39FACTORY OEM SERVICE PROCEDURE
Power Seat Module (PSM) DTCS
POWER SEAT MODULE (PSM) - DTC INDEX
| DTC | Description |
|---|---|
| PSM-0001 | Hall sensor 1. Faulty signal (L.H.D) |
| PSM-0002 | Hall sensor 2. Faulty signal (L.H.D) |
| PSM-0003 | Hall sensor 3. Faulty signal (L.H.D) |
| PSM-0004 | Hall sensor 4. Faulty signal (L.H.D) |
| PSM-0007 | M1, M2, M3, M4 or MC. Short-circuit to supply voltage (L.H.D) |
| PSM-0008 | M1, M2, M3, M4 or MC. Short-circuit to ground (L.H.D) |
| PSM-0019 | Memory function 1. Internal fault |
| PSM-001A | Memory function 2. Internal fault |
| PSM-001B | Memory function 3. Internal fault |
| PSM-0020 | Front-rear adjustment control, M1+. Activated too long |
| PSM-0021 | Front-rear adjustment control, M1-. Activated too long |
| PSM-0022 | Backrest adjustment control, M2+. Activated too long |
| PSM-0023 | Backrest adjustment control, M2-. Activated too long |
| PSM-0024 | Rear edge adjustment control, M3+. Activated too long |
| PSM-0025 | Rear edge adjustment control, M3-. Activated too long |
| PSM-0026 | Front edge adjustment control, M4+. Activated too long |
| PSM-0027 | Front edge adjustment control, M4-. Activated too long |
| PSM-0028 | Operating button, memory 1. Activated for too long |
| PSM-0029 | Operating button, memory 2. Activated for too long |
| PSM-002A | Operating button, memory 3. Activated for too long |
| PSM-002B | Memory button. Activated too long |
| PSM-002C | Front-rear adjustment, M1+ and M1- Faulty signal |
| PSM-002D | Backrest, M2+ and M2-. Faulty signal |
| PSM-002E | Seat rear edge, M3+ and M3-. Faulty signal |
| PSM-002F | Seat front edge, M4+ and M4-. Faulty signal |
| PSM-0030 | Front-rear adjustment, motor 1 (M1+). Signal missing (L.H.D) |
| PSM-0032 | Backrest, motor 2 (M2+). Signal missing (L.H.D) |
| PSM-0034 | Seat rear edge, motor 3 (M3+). Signal missing (L.H.D) |
| PSM-0036 | Seat front edge, motor 4 (M4+). Signal missing (L.H.D) |
| PSM-0038 | Incorrect software |
| PSM-E001 | Control module communication. Faulty communication |
| PSM-E003 | Configuration fault. Faulty communication |
| PSM-E010 | Control module. Internal fault |
| PSM-XXXX | Unknown diagnostic trouble code (DTC) for the current control module version |
Factory Service Tools
Use the Manual With the Right Hardware
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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.