VOLVO
ECM-272D - Engine coolant temperature (ECT) sensor. Signal too low
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Vis modeller per årsmodell og motor (6)
- Volvo S60 (2001–2009)2005Kun motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S80 (1999–2006)2005Kun motor: B5204T5, B5244T4, B5254T2, B6294S2, B6294T
- Volvo S80 (1999–2006)2006Kun motor: B5244T4
- Volvo V70 (2000–2008)2005Kun motor: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo V70 XC / XC70 (2001–2007)2005Alle motorer unntatt: D5244T
- Volvo XC90 (2003–)2005Kun motor: B5254T2, B6294T
Hva betyr feilkoden?
The ECM calculates the engine temperature from the moment the engine starts and compares it with the sensor signal. If the sensor signal is below the calculated temperature, the code is set. The fault may come from a poor connection, a damaged sensor, or a thermostat that does not open.
Mulige årsaker
- Poor contact with resistance and oxidation in the sensor connector
- Damaged engine coolant temperature sensor
- A thermostat that does not open
Hva du kan gjøre
- 1Disconnect the connector to the electric cooling fan before troubleshooting, since the fan can run even when the ignition is off. Reconnect it afterwards
- 2Look at the sensor connector: it should be seated firmly and clean, with no resistance or oxidation
- 3Check the coolant level and that the coolant has the right freeze protection
- 4With diagnostic equipment, read the engine temperature after starting and see whether it rises sensibly as the engine warms
- 5Have a workshop check the thermostat and replace the sensor if the fault remains
Symptomer du kan merke2
- Malfunction indicator lamp (MIL) on
- The engine is hard to start
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