VOLVO
REM-1A05 - Relay, 15i power supply. Signal too low
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:
3 modelsV70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Show models by year and engine (3)
What does this fault code mean?
The rear electronic module (REM) registers an open circuit in the status signal when the control of the 15I supply relay is not activated, and the code is then stored. The cause is either an open circuit in the control wire to the relay or a relay that is not fitted.
Possible causes
- Open circuit in the control wire to the 15I supply relay
- The 15I supply relay is not installed
What you can do
- 1Read and note the fault code, clear it and test drive the car to see whether it returns
- 2Check that the 15I supply relay is present and sitting correctly in its place
- 3Check that the fuse for the 15I supply has not blown
- 4Check the control wire to the relay for breaks, chafing and loose connections
- 5If no fault is found, have a workshop try a new relay
Symptoms you may notice1
- The traction control warning lamp is lit
General guidance for car owners. Diagnosis on the car can point to a different cause.