VOLVO
REM-4F48 - Parking sensor 7. Faulty signal
System
Rear Electronic Module (REM)
Volvo models this fault code applies to
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 parking assistance module (PAM) judges the signal from parking sensor 7 to be faulty, and the code is set. Parking assistance then stops, and a message may appear in the text display.
Possible causes
- Signal wire between the PAM and parking sensor 7 shorted to supply voltage or ground
- Power supply wire to parking sensor 7 shorted to ground
- Ground wire to parking sensor 7 shorted to supply voltage
What you can do
- 1Clear the fault code and test drive the car; if it appears again, the fault is still there
- 2Use a multimeter to check that the signal wire to parking sensor 7 is not shorted to supply voltage or ground when the ignition is off
- 3Use a multimeter to check that the power supply wire to parking sensor 7 is not shorted to ground
- 4If no fault is found, have a workshop replace parking sensor 7
Symptoms you may notice2
- Parking assistance has no function
- Message in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.