VOLVO
ECM-2A0B - Fuel temperature sensor. Signal missing
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
9 ModelleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (14)
- Volvo C30 (2007–2013)2007Nur Motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Nur Motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Nur Motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Nur Motor: B5254T7
- Volvo S40 (2004–2013)2006–2007Nur Motor: B5254T3
- Volvo S40 (2004–2013)2008Nur Motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Nur Motor: B5254T7
- Volvo S60 (2001–2009)2006Nur Motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S80 (1999–2006)2006Nur Motor: B5204T5, B5254T2
- Volvo V50 (2004–2013)2006–2007Nur Motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Nur Motor: B5254T7
- Volvo V70 (2000–2008)2006Nur Motor: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2006Nur Motor: B5244T4, B5254T2
- Volvo XC90 (2003–)2006Nur Motor: B5254T2
Was bedeutet der Fehlercode?
The engine control module monitors the temperature signal from the sensor built into the fuel pressure sensor. The code is stored when the control module receives no signal at all from that sensor. The cause may be a broken signal or ground wire, a short in the signal wire, poor contact or a damaged sensor.
Mögliche Ursachen
- Contact resistance or oxidation in the connections
- Signal wire shorted to supply voltage
- Signal wire shorted to ground
- Break in the signal wire
- Break in the signal ground wire
- Damaged fuel temperature sensor
Was Sie tun können
- 1Clear the code, start the engine and see whether it returns
- 2With a diagnostic tool, check the fuel temperature in live data with the ignition on. A missing value means the signal itself is absent
- 3Switch off the ignition and check the connector at the fuel pressure sensor, where the temperature sensor sits, for oxidation and contact resistance
- 4With the car switched off, use a multimeter to check that the signal wire and the ground wire are not broken
- 5If the connector and wiring are in order but the fault remains, have a workshop replace the fuel pressure sensor, which contains the temperature sensor
Symptome, die Sie bemerken können1
- No noticeable symptoms for the driver
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.