VOLVO
ECM-1829 - Clutch pedal switch. Faulty signal
System
Engine Control Module (ECM)
Volvo models this fault code applies to
Applies to the following models:
2 modelsS40 (1996–2004), V40 (1996–2004)
Show models by year and engine (2)
What does this fault code mean?
The ECM monitors the clutch pedal switch, which is closed when the pedal is not pressed and open when it is pressed down. If the switch shows closed from standstill, fault code ECM-1829 is set.
Possible causes
- Signal wire shorted to ground
- Signal wire shorted to voltage
- Open circuit in the signal wire
- Clutch pedal switch incorrectly fitted or defective
What you can do
- 1Make sure the clutch pedal switch is properly fitted with no play. Look over the connections as well
- 2With a multimeter, check that the signal wire from the clutch pedal switch is not shorted to ground or voltage and is not broken
- 3With a diagnostic tool, read the clutch switch status in live data: it may show pressed right after switch-on, but should work normally after the first press
- 4If the fault remains, have a workshop adjust or replace the clutch pedal switch
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.