VOLVO
ECM-711B - Immobilizer. Signal missing
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 engine control module (ECM) compares the immobilizer code with the central electronic module (CEM), and it also checks that the hardware serial number of the brake control module (BCM) matches over the CAN network. If the communication between the engine control module and the BCM is faulty, the code is set with the ignition on, and the engine does not start. The fault may lie in the BCM or in the CAN wiring between the modules.
Mulige årsaker
- Fault in the brake control module (BCM)
- A break or short in the CAN lines linking the ECM and the BCM
Hva du kan gjøre
- 1Read the codes in the brake control module (BCM) and the central electronic module (CEM) and correct them first; this code should not be cleared until they are gone
- 2With the ignition off and the connectors disconnected, use a multimeter to check that the CAN wires between the engine control module and the BCM are intact and not shorted
- 3Do not work on the brake control module (BCM) yourself; the braking system is safety-critical, so fault tracing of the BCM should be done by a workshop
Symptomer du kan merke1
- The engine cranks but will not start
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