VOLVO
ECM-P057300 - Brake Switch A Circuit High. General Failure Information. No sub type information
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
3 modelsS60 (2011–), S80 (2007–), V70 (2008–)
Show models by year and engine (9)
- Volvo S60 (2011–)2011–2012Engine B5254T5 only
- Volvo S80 (2007–)2007–2008Engine B5254T6 only
- Volvo S80 (2007–)2009Engine B5254T6, B5254T8 only
- Volvo S80 (2007–)2010–2011Engine B5254T10, B5254T11, B5254T8 only
- Volvo S80 (2007–)2012Engine B5254T10 only
- Volvo V70 (2008–)2008Engine B5254T6 only
- Volvo V70 (2008–)2009Engine B5254T6, B5254T8 only
- Volvo V70 (2008–)2010–2011Engine B5254T10, B5254T11 only
- Volvo V70 (2008–)2012Engine B5254T10 only
What does this fault code mean?
The ECM checks that the signals from the brake pedal sensor and the brake light switch are reliable. The code concerns a high signal in the circuit to the brake pedal sensor or the brake light switch, or a fault in the CAN communication with the brake control module (BCM). It is checked while the engine is running.
Possible causes
- The cause may be in the BCM or the CEM
What you can do
- 1Check that the fuses are intact
- 2If you have diagnostic equipment: read the fault codes in the BCM and deal with them first, as this code cannot be cleared until the BCM fault has been dealt with
- 3If you have diagnostic equipment: read the brake light switch status in live data while you press the brake pedal
- 4Check that the connectors at the brake light switch and the brake pedal are seated properly and not corroded
- 5Use a multimeter to check that the wire to the brake light switch is not in contact with supply voltage
- 6If the fault remains, have a workshop check the brake light switch and the brake pedal sensor, as the fault concerns the brake system
Symptoms you may notice1
- Cruise control does not work at all
What the fault can affect1
- Cruise control is switched off
General guidance for car owners. Diagnosis on the car can point to a different cause.