VOLVO
ECM-U041504 - Brake Pedal Switch Circuit. Bus Signal / Message Failures. Signal invalid
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
3 modellerS60 (2011–), S80 (2007–), V70 (2008–)
Vis modeller per årsmodell og motor (9)
- Volvo S60 (2011–)2011–2012Kun motor: B5254T5
- Volvo S80 (2007–)2007–2008Kun motor: B5254T6
- Volvo S80 (2007–)2009Kun motor: B5254T6, B5254T8
- Volvo S80 (2007–)2010–2011Kun motor: B5254T10, B5254T11, B5254T8
- Volvo S80 (2007–)2012Kun motor: B5254T10
- Volvo V70 (2008–)2008Kun motor: B5254T6
- Volvo V70 (2008–)2009Kun motor: B5254T6, B5254T8
- Volvo V70 (2008–)2010–2011Kun motor: B5254T10, B5254T11
- Volvo V70 (2008–)2012Kun motor: B5254T10
Hva betyr feilkoden?
The engine control module (ECM) constantly receives brake pedal status information from the brake control module (BCM). On cars with adaptive cruise control there is a cancel switch, which makes it possible to tell the driver's own brake pedal movements apart from braking by the system. The code is set when the signal from that switch shows the same value for an unreasonably long time. Although the code is titled brake pedal switch circuit, it concerns the cancel switch.
Mulige årsaker
- Fault in the brake control module (BCM), which should be checked first
Hva du kan gjøre
- 1Read the codes in the brake control module and fix them first
- 2Check that the fuses are intact
- 3Check the CAN connections between the engine control module and the brake control module for loose or corroded contacts
- 4After battery disconnection or ECM reprogramming: hold the brake pedal down a while with the engine running to re-enable cruise
- 5Do not work on the braking system yourself. If it returns: have a workshop check the brake module and the cancel switch
Symptomer du kan merke1
- The cruise control does not engage
Hva feilen kan påvirke1
- The cruise control is switched off while the fault is active
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