VOLVO
REM-4F43 - Parking sensor 2. Faulty signal
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 code refers to parking sensor 2. The parking assistance module (PAM) checks the signal from it, and when a fault is found the code is set. Parking assistance then stops working, and the text display may show a message.
Possible causes
- Signal wire between the PAM and parking sensor 2 shorted to ground or supply voltage
- Short circuit to ground in the power supply wire to parking sensor 2
- Short circuit to supply voltage in the ground wire to parking sensor 2
What you can do
- 1Read and note the fault code, clear it and test drive the car to see whether it returns
- 2Use a multimeter to check that the signal wire to parking sensor 2 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 2 is not shorted to ground, and that the ground wire is not shorted to supply voltage
- 4If no fault is found, have a workshop replace parking sensor 2
Symptoms you may notice2
- Parking assistance does not work
- A message appears in the text display
General guidance for car owners. Diagnosis on the car can point to a different cause.