VOLVO
ECM-P050464 - Brake Switch A / B Correlation. Algorithm Based Failures. Signal plausibility failure
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
7 modellerS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–)
Vis modeller per årsmodell og motor (20)
- Volvo S60 (2011–)2011Kun motor: B4164T, B4164T3, B4204T6, B4204T7
- Volvo S60 (2011–)2012–2014Kun motor: B4164T, B4164T2, B4164T3, B4204T7
- Volvo S60 (2011–)2015Kun motor: B4164T, B4164T2, B4164T3
- Volvo S80 (2007–)2010Kun motor: B4204T6
- Volvo S80 (2007–)2011Kun motor: B4164T, B4204T6, B4204T7
- Volvo S80 (2007–)2012–2014Kun motor: B4164T, B4164T2, B4204T6, B4204T7
- Volvo S80 (2007–)2015Kun motor: B4164T
- Volvo V40 (2013–)2013Kun motor: B4164T, B4164T3
- Volvo V40 (2013–)2014–2015Kun motor: B4164T, B4164T3, B4164T4
- Volvo V40 Cross Country (2013–)2013–2015Kun motor: B4164T
- Volvo V60 (2011–)2011Kun motor: B4164T, B4164T3, B4204T6, B4204T7
- Volvo V60 (2011–)2012–2014Kun motor: B4164T, B4164T2, B4164T3, B4204T7
- Volvo V60 (2011–)2015Kun motor: B4164T, B4164T2, B4164T3
- Volvo V70 (2008–)2010Kun motor: B4204T6
- Volvo V70 (2008–)2011Kun motor: B4164T, B4204T6, B4204T7
- Volvo V70 (2008–)2012–2014Kun motor: B4164T, B4164T2, B4204T7
- Volvo V70 (2008–)2015Kun motor: B4164T, B4164T2
- 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 ECM verifies that the readings from the pedal sensor and the light switch are reliable. The code is set when the two signals differ repeatedly. The central electronic module (CEM) is also connected to the brake light switch and may be the cause.
Mulige årsaker
- Diagnose the cause in the central electronic module (CEM)
- The wire to the brake light switch has a break or is shorted to ground or supply voltage
- The wire to the brake pedal position sensor has a break or is shorted to ground or supply voltage
- Contact resistance, oxidation or intermittent contact in the connector
- The wire to the brake pedal switch has a break or is shorted to ground or supply voltage
Hva du kan gjøre
- 1Read the codes in the brake control module (BCM) and the central electronic module (CEM) and repair them first
- 2Check that the brake light switch is fitted correctly and that the brake pedal position sensor sits properly
- 3Check the connections to the brake light switch and brake pedal position sensor for oxidation, breaks or a short to ground
- 4Check that the fuses are intact
- 5If you have a diagnostic tool, follow the brake pedal positions in live data and check that they agree when the pedal is pressed and released
- 6Do not work on the braking system yourself; if the fault returns, have a workshop check the components with diagnostic equipment
Symptomer du kan merke3
- Red warning symbol and message in the display
- Cruise control does not engage
- Warning symbol and message in the display
Hva feilen kan påvirke1
- Cruise control is switched off while the fault is active
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