VOLVO
ECM-120A - Intake air temperature (IAT) sensor inlet. Faulty signal
System
Motorsteuergerät (ECM)
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:
7 ModelleC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S60 (2001–2009), S70 (1997–2000), S80 (1999–2006), V70 (1997–2000), V70 (2000–2008)
Modelle nach Baujahr und Motor anzeigen (19)
- Volvo C70 Cabriolet (1998–2005)2000Nur Motor: B5244S
- Volvo C70 Coupé (1998–2002)1999Nur Motor: B5254S DENSO
- Volvo C70 Coupé (1998–2002)2000Nur Motor: B5244S
- Volvo S60 (2001–2009)2001, 2009Nur Motor: B5244S, B5244S2
- Volvo S60 (2001–2009)2002Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2003–2005Nur Motor: B5244S, B5244S2, B5244S6, B5244SG, B5244SG2
- Volvo S60 (2001–2009)2006Nur Motor: B5244S, B5244S2, B5244S6, B5244SG
- Volvo S60 (2001–2009)2007–2008Nur Motor: B5244S, B5244S2, B5244SG
- Volvo S70 (1997–2000)1999Nur Motor: B5254S DENSO
- Volvo S70 (1997–2000)2000Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo S80 (1999–2006)1999–2000Nur Motor: B5244S, B5244S2
- Volvo S80 (1999–2006)2001, 2006Nur Motor: B5244S, B5244S2, B5244SG
- Volvo S80 (1999–2006)2002–2005Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (1997–2000)1999Nur Motor: B5254S DENSO
- Volvo V70 (1997–2000)2000Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2001, 2007–2008Nur Motor: B5244S, B5244S2, B5244SG
- Volvo V70 (2000–2008)2002Nur Motor: B5244S, B5244S2, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2003–2005Nur Motor: B5244S, B5244S2, B5244S6, B5244SG, B5244SG2
- Volvo V70 (2000–2008)2006Nur Motor: B5244S, B5244S2, B5244S6, B5244SG
Was bedeutet der Fehlercode?
The engine control module compares the intake air temperature sensor with the engine and outside temperature sensors after the car has been switched off for a long time. If the air temperature deviates too much from the other sensors' values, the code is set. The code is checked with the ignition on, once the engine has cooled down properly.
Mögliche Ursachen
- Faulty signal from the intake air temperature sensor, which sits in the mass air flow sensor
- Contact resistance in the connector
- Damaged intake air temperature sensor inside the mass air flow sensor
Was Sie tun können
- 1With your own diagnostic tool, compare the air temperature in live data with the engine temperature after a night without driving; the values should be close
- 2Check that the mass air flow sensor connector is secure and free from oxidation
- 3Clear the code and road test to see whether it returns
- 4If the temperature is now correct, the fault was probably caused by poor contact in the connector
- 5If the fault remains, have a workshop replace the mass air flow sensor, since the air temperature sensor is part of it and cannot be replaced separately
Symptome, die Sie bemerken können1
- The malfunction indicator lamp comes on
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.