VOLVO
ECM-P260087 - Coolant Pump "A" Control Circuit/Open. Bus Signal / Message Failures. Missing message
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
8 modeliS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)
Pokaż modele wg rocznika i silnika (8)
- Volvo S60 (2011–)2014–2015Tylko silnik: B4204T10, B4204T11, B4204T12, B4204T15, B4204T9
- Volvo S80 (2007–)2014–2015Tylko silnik: B4204T11, B4204T12, B4204T15
- Volvo V40 (2013–)2015Tylko silnik: B4204T11
- Volvo V40 Cross Country (2013–)2015Tylko silnik: B4204T11
- Volvo V60 (2011–)2014–2015Tylko silnik: B4204T11, B4204T12, B4204T15, B4204T9
- Volvo V70 (2008–)2014–2015Tylko silnik: B4204T11
- Volvo XC60 (2009–)2014–2015Tylko silnik: B4204T10, B4204T11, B4204T12, B4204T15, B4204T9
- Volvo XC70 (2008–)2014–2015Tylko silnik: B4204T11
Co oznacza ten kod błędu?
The engine control module (ECM) communicates with the electric coolant pump over the LIN bus and monitors that communication. The code is set when there is an open circuit on the wire between the control module and the pump, either on the LIN bus or in the power supply. The fault shows up as uneven temperature, and the pump then runs at full speed.
Możliwe przyczyny
- Communication fault on the LIN bus
- Contact resistance, oxidation or a break in the connections
- Open circuit in the signal ground wire
Co możesz zrobić
- 1Check that the fuses are intact
- 2Check the connectors to the coolant pump for contact resistance, oxidation and breaks
- 3Follow the signal ground wire to the pump and look for a break with a multimeter
- 4If you have a diagnostic tool: see whether the code is active now or only stored, and when it last occurred
- 5If the fault remains, have a workshop check the LIN communication to the coolant pump
Objawy, które możesz zauważyć1
- Temperature control works unevenly
Na co może wpływać usterka1
- The coolant pump runs at full speed
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.