VOLVO
REM-4A39 - Fuel level, gas. Signal too low
System
Rear Electronic Module (REM)
Volvo models this fault code applies to
Applies to the following models:
3 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008)
Show models by year and engine (3)
What does this fault code mean?
The rear electronic module (REM) calculates how much gas is in the tank using the temperature and pressure sensors in the gas tank. The code is set when the calculated gas volume falls. The cause can be a gas leak or defective sensors in the gas tank.
Possible causes
- Gas leak
- Defective sensors in the gas tank
What you can do
- 1Note the fault code, clear it and drive the car to see whether it returns
- 2Check the gas lines and connections for visible leaks
- 3If you suspect the gas system is leaking, have a workshop check it
- 4If the fault remains, have a workshop check the sensors in the gas tank
Symptoms you may notice1
- The general orange warning lamp is lit
What the fault can affect1
- The control module counts the gas level as zero
General guidance for car owners. Diagnosis on the car can point to a different cause.