VOLVO
ECM-740C - Communication, central electronic module (CEM). Signal too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (9)
- Volvo C30 (2007–2013)2007Kun motor: B5254T3
- Volvo C30 (2007–2013)2008–2013Kun motor: B5254T7
- Volvo C70 (2006–2013)2006–2007Kun motor: B5254T3
- Volvo C70 (2006–2013)2008–2013Kun motor: B5254T7
- Volvo S40 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo S40 (2004–2013)2008Kun motor: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Kun motor: B5254T7
- Volvo V50 (2004–2013)2005–2007Kun motor: B5254T3
- Volvo V50 (2004–2013)2008–2012Kun motor: B5254T7
Hva betyr feilkoden?
The checksum the ECM calculates does not match the one stored in the CEM. The reason is one or several codes logged in the CEM. The fault applies to the C30, C70 (06-), S40 (04-) and V50.
Mulige årsaker
- One or several codes are logged in the CEM
Hva du kan gjøre
- 1Read the codes in the central electronic module first and remedy them
- 2Clear the stored codes in the CEM once they have been remedied, then clear this code in the engine control module
- 3If you have a diagnostic tool: check that the CEM has no stored codes left before road testing the car
- 4If the code returns, have a workshop with diagnostic equipment check the CEM and the engine control module
Symptomer du kan merke1
- No noticeable symptoms for the driver
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