VOLVO
GDM-0005 - Control module. Signal too high
System
Gas Distribution Module (GDM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsS40 (1996–2004), V40 (1996–2004)
Show models by year and engine (2)
What does this fault code mean?
The xenon lamp control module has received a signal value that is too high. The circuit in the module has become too hot and may have been damaged. The headlamps are set to their lowest position.
Possible causes
- Defective control module
What you can do
- 1Clear the fault codes and switch on the dipped beam, since the xenon lamp control module only communicates with the dipped beam on cars without automatic dipped beam
- 2Wait a while and then read the fault codes again
- 3If the fault code returns, have a workshop replace the control module and calibrate it
Symptoms you may notice1
- The headlamp motor does not work
What the fault can affect1
- The headlamps are set to their lowest position
General guidance for car owners. Diagnosis on the car can point to a different cause.