VOLVO
REM-6A05 - Unlocking relay, central locking, rear left door. Signal missing
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?
Although the code is named signal missing, it concerns a signal that is too high on the ground circuit of the unlocking relay coil when unlocking. The cause can be a defective relay with a short in its coil or a defective control module. The left rear door may then not unlock.
Possible causes
- A short inside the unlocking relay coil
- Fault in the control module
What you can do
- 1Check that the unlocking relay for the left rear door is firmly seated and its contacts in the base are clean
- 2If you have a diagnostic tool, activate the relay and see whether the left rear door unlocks
- 3If the relay is defective, have a workshop replace it and check the control module
Symptoms you may notice1
- The left rear door does not unlock
General guidance for car owners. Diagnosis on the car can point to a different cause.