Co oznacza kod błędu ECM-843D?

Diagnostyka i definicja kodu błędu dla ECM-843D (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C70 (2006–2013)). Zamów naprawę w OBD Tuning.

VOLVO

ECM-843D - Starter motor relay. Signal too low

Układ

Sterownik silnika (ECM)

Modele Volvo, których dotyczy ten kod błędu

Dotyczy następujących modeli:

4 modele

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Pokaż modele wg rocznika i silnika (9)

Co oznacza ten kod błędu?

The engine control module (ECM) compares the voltage on the starter motor relay signal wire with a limit value at start. If the voltage stays below the limit for a certain time, the control module registers a fault and sets the code. The cause may be a short to ground or an open circuit in the signal wire, a faulty relay, an open circuit in the supply to the starter motor or a damaged control module.

Możliwe przyczyny

The signal wire is shorted to ground
Open circuit in the signal wire
Open circuit in the supply to the starter motor
Damaged starter motor relay
Damaged control module

Co możesz zrobić

1Read the code, clear it and check that it does not return at the next start
2With the ignition off, check the connectors to the starter motor relay for loose fit, oxidation and contact resistance
3Check the signal wire for breaks, and use a multimeter against ground (the body) to confirm it is not shorted
4Check that the starter motor relay is undamaged and seated properly
5If the fault remains after these checks, have a workshop check the supply to the starter motor and the control module

Objawy, które możesz zauważyć1

The engine does not start

Na co może wpływać usterka1

Only manual starting is possible

Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.