VOLVO
TCM-008D - Lock-up pressure switch. Faulty signal
System
Girkassestyring (TCM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerS80 (1999–2006), XC90 (2003–)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The transmission control module reads the signal from the lock-up pressure switch (PS4) and uses it to check the position of the lock-up valve. The fault means the signal is wrong, because the lock-up solenoid has jammed in either the open or the closed position.
Mulige årsaker
- The lock-up pressure switch is stuck
- Contact resistance in the connections
Hva du kan gjøre
- 1Read off the fault codes and deal with any other transmission fault codes first
- 2Have a workshop program the control module with the latest software, since the module needs the updated version
- 3After programming, read the fault codes again; if codes for the pressure switch or lock-up solenoid remain, they should be followed up
- 4Road test the car and see whether the fault code comes back
Symptomer du kan merke3
- The automatic transmission warning lamp flashes
- No lock-up function
- Harsh gear shifting
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