VOLVO
ECM-P050400 - Brake Switch A / B Correlation. General Failure Information. No sub type information
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Gjelder følgende modeller:
12 modellerC30 (2007–2013), S40 (2004–2013), S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V50 (2004–2013), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Vis modeller per årsmodell og motor (22)
- Volvo C30 (2007–2013)2011–2013Kun motor: D4162T
- Volvo S40 (2004–2013)2011–2012Kun motor: D4162T
- Volvo S60 (2011–)2011–2015Kun motor: D4162T
- Volvo S80 (2007–)2007Kun motor: D5244T4, D5244T5
- Volvo S80 (2007–)2008Alle motorer unntatt: B5254T6, B6304T2, B6324S, B8444S
- Volvo S80 (2007–)2009Kun motor: B4204S3, B4204S4, D4204T, D5244T4, D5244T5
- Volvo S80 (2007–)2010Kun motor: B4204S3, B4204S4, D4164T, D4204T
- Volvo S80 (2007–)2011Kun motor: B4204S3, B4204S4, D4164T
- Volvo S80 (2007–)2012–2015Kun motor: D4162T
- Volvo V40 (2013–)2013–2015Kun motor: D4162T
- Volvo V40 Cross Country (2013–)2013–2015Kun motor: D4162T
- Volvo V50 (2004–2013)2011–2012Kun motor: D4162T
- Volvo V60 (2011–)2011–2015Kun motor: D4162T
- Volvo V70 (2008–)2008Alle motorer unntatt: B5254T6, B6304T2, B6324S
- Volvo V70 (2008–)2009Kun motor: B4204S3, B4204S4, D4204T, D5244T4, D5244T5
- Volvo V70 (2008–)2010Kun motor: B4204S3, B4204S4, D4164T, D4204T
- Volvo V70 (2008–)2011Kun motor: B4204S3, B4204S4, D4164T
- Volvo V70 (2008–)2012–2015Kun motor: D4162T
- Volvo XC60 (2009–)2009Alle motorer unntatt: B6304T2
- Volvo XC70 (2008–)2008Alle motorer unntatt: B6324S
- Volvo XC70 (2008–)2009Kun motor: D5244T4, D5244T5
- Volvo XC90 (2003–)2013–2014Kun motor: D5244T18, D5244T5
Hva betyr feilkoden?
The engine control module (ECM) compares the signals from the brake pedal sensor and the brake light switch and checks that they agree. The code is set when the signals do not match, when the circuits are faulty, or when communication with the brake control module (BCM) is disturbed.
Mulige årsaker
- Diagnose the cause in the brake control module (BCM)
- Break or short to ground or supply voltage on the brake light switch wire
- Contact resistance or oxidation in the connections to the brake light switch or brake pedal position sensor
- Brake light switch incorrectly fitted or damaged
- Damaged brake pedal position sensor or a break in the brake pedal sensor circuit
- Low battery voltage
Hva du kan gjøre
- 1Read the codes in the brake control module (BCM) first and repair them, as this code cannot be cleared until the BCM code has been repaired
- 2Check that the fuses for the brake lights and brake pedal are intact, and that the brake light switch is fitted correctly
- 3Check the connectors to the brake light switch and brake pedal sensor for oxidation, loose contacts and chafed wiring
- 4If you have a diagnostic tool, follow the brake pedal signals in live data and check that they change together when you press and release the brake
- 5Use a multimeter to check that the wire to the brake light switch has no break and no contact with ground
- 6If the fault returns, have a workshop with diagnostic equipment check the brake light switch and brake pedal sensor. Do not work on the braking system yourself
Symptomer du kan merke4
- Cruise control does not engage
- Warning symbol and message in the display
- The car feels weak or lacks power
- Cruise control does not hold the set speed and disengages
Hva feilen kan påvirke1
- Cruise control is switched off while the fault is active, or for the rest of the drive cycle in which it was detected
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