VOLVO
REM-8D12 - High level stop lamp. Signal too high
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 rear electronic module (REM) feeds the high-mounted stop lamp directly from an output. The fault is set when the signal at that output is too high, which comes from the signal cable being shorted to supply voltage, or from the high-mounted stop lamp being missing or damaged.
Possible causes
- Signal cable shorted to supply voltage
- The high-mounted stop lamp is not fitted or is damaged
What you can do
- 1With the ignition off, use a multimeter to check that the signal cable to the stop lamp has no contact with supply voltage and no break
- 2Check that the high-mounted stop lamp is correctly fitted and undamaged
- 3If the fault remains, have a workshop with diagnostic equipment check the wiring and the control module
Symptoms you may notice2
- The stop lamp lights constantly
- A message appears in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.