VOLVO
BCM-0040 - Right rear wheel sensor. Signal missing
Układ
Sterownik układu hamulcowego (BCM)
Modele Volvo, których dotyczy ten kod błędu
Ten kod błędu ma różne znaczenie w zależności od modelu, rocznika lub silnika. Wybierz znaczenie, które dotyczy Twojego samochodu.
Dotyczy następujących modeli:
5 modeliS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Pokaż modele wg rocznika i silnika (11)
- Volvo S60 (2001–2009)2002–2009
- Volvo S80 (1999–2006)2002–2006
- Volvo V70 (2000–2008)2002–2008
- Volvo V70 XC / XC70 (2001–2007)2002–2007
- Volvo XC90 (2003–)2003–2004, 2015
- Volvo XC90 (2003–)2005–2006Wszystkie silniki oprócz: B8444S
- Volvo XC90 (2003–)2007Tylko silnik: B5254T2, D5244T4
- Volvo XC90 (2003–)2008–2010Wszystkie silniki oprócz: B6324S, B8444S
- Volvo XC90 (2003–)2011Wszystkie silniki oprócz: B6324S5, B8444S
- Volvo XC90 (2003–)2012Wszystkie silniki oprócz: B6324S5
- Volvo XC90 (2003–)2013–2014Tylko silnik: B5254T9
Co oznacza ten kod błędu?
The brake control module (BCM) receives wheel speed information from the wheel sensors, which read a toothed ring on the wheel axle. The code is set if the signal from the right rear wheel sensor is disturbed or drops out many times. It can only be diagnosed while the car is rolling, so it is usually seen then.
Możliwe przyczyny
- Contact resistance in the connections
- Open circuit, or short to ground or supply voltage, in the sensor supply
- Signal wires shorted to each other
- Signal wire shorted to ground or supply voltage, or with an open circuit
- Defective wheel sensor
- Internal fault in the control module
Co możesz zrobić
- 1Check the connectors at the brake control module and the wheel sensor for contact resistance and oxidation
- 2Read the wheel speed with diagnostic equipment while the wheel is turned; if the value updates, the fault was a poor connection
- 3Check the wire between the brake control module and the wheel sensor, especially near the steering column, for damage and chafing
- 4Clear the code and road test to see whether it returns
- 5The brake system is safety critical: drive carefully until the fault is fixed, and do not work on ABS or the brakes yourself
Objawy, które możesz zauważyć4
- The general warning lamp and ABS warning lamp come on
- The brake circuit does not work and the warning lamp comes on
- Traction control, stability control and anti-skid do not work
- With an intermittent fault the ABS lamp may only go out some way into the next drive
Na co może wpływać usterka3
- ABS is disabled
- Electronic brake force distribution (EBD) is disabled if two or more wheel sensors have failed
- Traction control, stability control, active yaw control (AYC) and brake assist are disabled
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.