VOLVO
BCM-0040 - Right rear wheel sensor. Signal missing
System
Bremssteuergerät (BCM)
Volvo-Modelle, für die dieser Fehlercode gilt
Dieser Fehlercode hat je nach Modell, Modelljahr oder Motor unterschiedliche Bedeutungen. Wählen Sie die Bedeutung, die für Ihr Fahrzeug gilt.
Gilt für folgende Modelle:
5 ModelleS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (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–)2005–2006Alle Motoren außer: B8444S
- Volvo XC90 (2003–)2007Nur Motor: B5254T2, D5244T4
- Volvo XC90 (2003–)2008–2010Alle Motoren außer: B6324S, B8444S
- Volvo XC90 (2003–)2011Alle Motoren außer: B6324S5, B8444S
- Volvo XC90 (2003–)2012Alle Motoren außer: B6324S5
- Volvo XC90 (2003–)2013–2014Nur Motor: B5254T9
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- 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
Was Sie tun können
- 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
Symptome, die Sie bemerken können4
- 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
Was der Fehler beeinflussen kann3
- 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
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.