VOLVO
ECM-1935 - Stop lamp switch. Faulty signal
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
4 modeleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Pokaż modele wg rocznika i silnika (10)
- Volvo C30 (2007–2013)2007Tylko silnik: D4204T
- Volvo C30 (2007–2013)2008–2010Tylko silnik: D4204T · Tylko skrzynia biegów: MMT6, MPS6
- Volvo C70 (2006–2013)2008Tylko silnik: D4204T
- Volvo C70 (2006–2013)2009–2010Tylko silnik: D4204T · Tylko skrzynia biegów: MMT6, MPS6
- Volvo S40 (2004–2013)2004–2006Tylko silnik: D4204T, D4204T2
- Volvo S40 (2004–2013)2007Tylko silnik: D4204T
- Volvo S40 (2004–2013)2008–2010Tylko silnik: D4204T · Tylko skrzynia biegów: MMT6, MPS6
- Volvo V50 (2004–2013)2004–2006Tylko silnik: D4204T, D4204T2
- Volvo V50 (2004–2013)2007Tylko silnik: D4204T
- Volvo V50 (2004–2013)2008–2010Tylko silnik: D4204T · Tylko skrzynia biegów: MMT6, MPS6
Co oznacza ten kod błędu?
The ECM verifies that the signals from the brake pedal sensor and the brake light switch are reliable. If a fault is registered in either circuit, or in the messages passing between the BCM and the ECM, the code is set. Cruise control is switched off while the fault is present.
Możliwe przyczyny
- Fault in the brake control module (BCM)
- Play, contact resistance or oxidation in the connections between the engine control module and the brake light switch
- Open circuit in the power supply to the brake light switch
- Open circuit, or a short to ground or supply voltage, in the wire to the brake light switch
- Brake light switch fitted incorrectly
- Damaged brake light switch
Co możesz zrobić
- 1Sort out fault codes in the BCM and the CEM first, then clear this code
- 2Check that the brake lights come on when the brake pedal is pressed and go off when it is released
- 3Check that the brake light switch is correctly mounted in its bracket and that its connector is clean and secure
- 4Use a multimeter to check that the signal wire to the brake light switch has no open circuit and is not short-circuited to ground or supply voltage
- 5If you have a diagnostic tool, follow the brake light switch state in live data while you press and release the brake pedal
- 6Have a workshop check the brake light switch and the brake system if the fault remains
Objawy, które możesz zauważyć2
- Text message or warning symbol in the display
- Poor performance or lack of power when driving
Na co może wpływać usterka1
- Cruise control is switched off
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.