VOLVO
CRM-20A1 - Hall sensor 1. Shorted to supply
System
Chassis (Bremser, styring, fjæring)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
1 modellC70 (2006–2013)
Vis modeller per årsmodell og motor (1)
Hva betyr feilkoden?
Hall sensor 1 draws less current than normal, and when the hydraulic pump for the roof starts, no signal comes from the sensor. This points to the wire between the sensor and the roof control module being shorted to voltage. The roof may then not move as it should.
Mulige årsaker
- Short to voltage in the wire from hall sensor 1 to the roof control module
- Damaged hall sensor
- Fault inside the convertible roof module (CRM)
Hva du kan gjøre
- 1Read out and clear the fault code, test the roof in both directions and see whether the fault returns
- 2Look at the connector at hall sensor 1 and check that it is fully seated and free from oxidation
- 3With a multimeter you can check that the wire from hall sensor 1 has no contact with voltage
- 4If no fault is found in the wire, hall sensor 1 may be damaged and a workshop should replace it
- 5If the fault remains, a workshop needs to check the roof control module
Symptomer du kan merke2
- The roof cannot be operated, or only moves partly
- A message in the display
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.