VOLVO
REM-6F52 - Unlocking relay, central locking tailgate. Signal too high
System
Rear Electronic Module (REM)
Volvo models this fault code applies to
This fault code has different meanings depending on model, model year or engine. Select the meaning that applies to your car.
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
What does this fault code mean?
The rear electronic module (REM) has registered too high a signal on the ground circuit of the relay coil when the tailgate central locking unlocks. The fault lies in the relay or in the control module, so the tailgate cannot be unlocked correctly.
Possible causes
- Faulty relay, with a short circuit in the relay coil
- Defective control module
What you can do
- 1Replace the tailgate unlocking relay with a new one and check that the tailgate unlocks
- 2If unlocking works after the replacement, the relay was the fault
- 3If you have a diagnostic tool, you can activate the tailgate unlocking and listen for the relay
- 4If it still does not work, have a workshop with diagnostic equipment check the control module
Symptoms you may notice1
- The tailgate does not lock or open
General guidance for car owners. Diagnosis on the car can point to a different cause.