VOLVO
CRM-20B2 - Hall sensor 3. Short to GND, disconnected or internal error
Układ
Podwozie (Hamulce, układ kierowniczy, zawieszenie)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
1 modelC70 (2006–2013)
Pokaż modele wg rocznika i silnika (1)
Co oznacza ten kod błędu?
Hall sensor 3 draws more current than normal, and no sensor pulse appears when the hydraulic pump runs. The fault can be caused by a short to ground in the signal wire, a break or disconnected connector between the sensor and the control module, an internal fault in the sensor, or a fault inside the roof control module.
Możliwe przyczyny
- The signal wire from hall sensor 3 is shorted to ground
- Break in the connection between hall sensor 3 and the roof control module
- Internal fault in hall sensor 3
- Internal fault in the roof control module (CRM)
Co możesz zrobić
- 1Read out and clear the fault code, test the roof and see whether the fault returns
- 2Check that the connector to hall sensor 3 is clean, fully seated and free from loose connections
- 3With a multimeter you can check whether the wire from the sensor has a break or a short to ground
- 4Repair a damaged wire. If the connector and wire are intact but the fault remains, a workshop should replace hall sensor 3
- 5If the fault still remains, a workshop needs to check the roof control module
Objawy, które możesz zauważyć2
- No or limited roof operation
- A message appears in the display
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.