VOLVO
ECM-2720 - Engine coolant temperature (ECT) sensor. Faulty signal
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode 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 (6)
- Volvo S60 (2001–2009)2005Nur Motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S80 (1999–2006)2005Nur Motor: B5204T5, B5244T4, B5254T2, B6294S2, B6294T
- Volvo S80 (1999–2006)2006Nur Motor: B5244T4
- Volvo V70 (2000–2008)2005Nur Motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2005Alle Motoren außer: D5244T
- Volvo XC90 (2003–)2005Nur Motor: B5254T2, B6294T
Was bedeutet der Fehlercode?
The ECM compares the sensor signal with a calculated engine temperature. If the signal stays static and does not match the calculated value, the code is set. It is stored together with another fault code for the coolant temperature sensor.
Mögliche Ursachen
- Contact resistance and oxidation in the connectors
- The temperature sensor is damaged
Was Sie tun können
- 1Read the other fault code for the coolant temperature sensor first and fix it
- 2Disconnect the connector to the electric cooling fan before working in the engine bay, since the fan can run even when the ignition is off
- 3Check the connector on the temperature sensor for contact resistance and oxidation
- 4Check the coolant level and that the coolant has the right freeze protection, since a frozen sensor can cause this code
- 5With diagnostic equipment, read the engine temperature after starting and see whether it rises in step with warm-up
Symptome, die Sie bemerken können2
- Malfunction indicator lamp (MIL) on
- The engine is hard to start
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.