VOLVO
ECM-P193462 - Vehicle Speed Signal. Algorithm Based Failures. Signal compare failure
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
5 modellerS60 (2011–), S80 (2007–), V60 (2011–), V70 (2008–), XC60 (2009–)
Vis modeller per årsmodell og motor (12)
- Volvo S60 (2011–)2011Kun motor: B4204T6, B4204T7
- Volvo S60 (2011–)2012–2014Kun motor: B4204T7
- Volvo S80 (2007–)2010Kun motor: B4204T6
- Volvo S80 (2007–)2011–2014Kun motor: B4204T6, B4204T7
- Volvo V60 (2011–)2011Kun motor: B4204T6, B4204T7
- Volvo V60 (2011–)2012–2014Kun motor: B4204T7
- Volvo V70 (2008–)2010Kun motor: B4204T6
- Volvo V70 (2008–)2011Kun motor: B4204T6, B4204T7
- Volvo V70 (2008–)2012–2014Kun motor: B4204T7
- Volvo XC60 (2009–)2010Kun motor: B4204T6
- Volvo XC60 (2009–)2011–2012Kun motor: B4204T6, B4204T7
- Volvo XC60 (2009–)2013–2015Kun motor: B4204T7
Hva betyr feilkoden?
The engine control module (ECM) compares the speed value from the brake control module (BCM) with the one from the transmission control module (TCM). The code is set if the signals differ when the car is driven at higher speed, or at a steady speed for a longer period. It is a comparison between two signals, so the fault can lie in either control module.
Mulige årsaker
- Faulty speed value from the brake control module (BCM)
- Fault in the transmission control module (TCM), which also sends a speed signal
Hva du kan gjøre
- 1Read off the codes in the brake control module (BCM) and in the transmission control module (TCM) first, since the fault lies in one of them
- 2Remedy the faults in those two control modules and clear their trouble codes before clearing the code in the engine control module
- 3Check that the connectors to the brake control module and the transmission control module are secure and free from corrosion
- 4Drive at a steady speed for a while on a test drive and check that the speedometer shows the correct speed
- 5If you have a diagnostic tool: compare the speed values from the BCM and TCM in live data during the test drive and check that they agree
Symptomer du kan merke1
- Speedometer shows incorrect values or does not work
Hva feilen kan påvirke2
- On cars with manual transmission the speed signal is set to a default value
- On cars with automatic transmission a secondary speed signal from the transmission control module (TCM) is used
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