VOLVO
ECM-1935 - Stop lamp switch. Faulty signal
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
4 ModelleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (10)
- Volvo C30 (2007–2013)2007Nur Motor: D4204T
- Volvo C30 (2007–2013)2008–2010Nur Motor: D4204T · Nur Getriebe: MMT6, MPS6
- Volvo C70 (2006–2013)2008Nur Motor: D4204T
- Volvo C70 (2006–2013)2009–2010Nur Motor: D4204T · Nur Getriebe: MMT6, MPS6
- Volvo S40 (2004–2013)2004–2006Nur Motor: D4204T, D4204T2
- Volvo S40 (2004–2013)2007Nur Motor: D4204T
- Volvo S40 (2004–2013)2008–2010Nur Motor: D4204T · Nur Getriebe: MMT6, MPS6
- Volvo V50 (2004–2013)2004–2006Nur Motor: D4204T, D4204T2
- Volvo V50 (2004–2013)2007Nur Motor: D4204T
- Volvo V50 (2004–2013)2008–2010Nur Motor: D4204T · Nur Getriebe: MMT6, MPS6
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- 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
Was Sie tun können
- 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
Symptome, die Sie bemerken können2
- Text message or warning symbol in the display
- Poor performance or lack of power when driving
Was der Fehler beeinflussen kann1
- Cruise control is switched off
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.