VOLVO
GDM-0001 - Speed signal. Faulty signal
System
Gassdistribusjonsmodul (GDM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
2 modellerS40 (1996–2004), V40 (1996–2004)
Vis modeller per årsmodell og motor (2)
Hva betyr feilkoden?
The xenon lamp control module (GDM) registers a speed signal that stays at a value that is too high for a longer period. The cause can be an incorrect speed signal from the instrument panel, intermittent short circuits or loose wiring in the signal cable, or electrical interference. The headlamps are set to their lowest position.
Mulige årsaker
- Incorrect vehicle speed signal from the instrument panel
- Intermittent short circuit or loose wiring in the signal cable from the instrument panel
- Electromagnetic interference (EMC)
Hva du kan gjøre
- 1First read the fault codes for the speed signal in the instrument panel and for the wheel sensors in the ABS module, and remedy them
- 2Check the cable connector to the xenon lamp control module (GDM) for contact resistance and oxidation
- 3Inspect the leads running to every module that is linked up, looking for breaks and loose contacts
- 4If you have diagnostic equipment: compare the speed value in live data with the speedometer during a road test
- 5Clear the fault code after the repair and check that it does not return
Symptomer du kan merke1
- The headlamp motor does not respond
Hva feilen kan påvirke1
- The headlamps are set to their lowest position
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