VOLVO
ECM-91AC - Throttle unit. Current too high
System
Motorstyring (ECM)
Volvo-modeller feilkoden gjelder for
Feilkoden har ulik betydning avhengig av modell, årsmodell eller motor. Velg betydningen som gjelder din bil.
Gjelder følgende modeller:
4 modellerC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Vis modeller per årsmodell og motor (8)
- Volvo C30 (2007–2013)2007–2011Kun motor: B5244S4
- Volvo C70 (2006–2013)2006Alle motorer unntatt: B5254T3
- Volvo C70 (2006–2013)2007–2010Kun motor: B5244S4, B5244S5
- Volvo C70 (2006–2013)2011Kun motor: B5244S4
- Volvo S40 (2004–2013)2004Kun motor: B5244S4, B5244S5
- Volvo S40 (2004–2013)2005–2010Kun motor: B5244S4, B5244S5, B5244S7
- Volvo V50 (2004–2013)2004Kun motor: B5244S4, B5244S5
- Volvo V50 (2004–2013)2005–2010Kun motor: B5244S4, B5244S5, B5244S7
Hva betyr feilkoden?
The ECM verifies that the throttle reaches the angle it has asked for. If it detects a fault linked to the throttle unit's motor or its control, the code is set. The fault can be a sticking throttle, wiring that is short-circuited or open, or a damaged throttle unit or engine control module.
Mulige årsaker
- The throttle is stuck or sticking, for example from dirt, oil film or ice
- Damaged throttle unit
- Faulty signal from the throttle unit to the engine control module
- Wiring to the throttle unit short-circuited to voltage or ground
- Open circuit in the wiring to the throttle unit
- Damaged engine control module
Hva du kan gjøre
- 1Check that the throttle is not sticking or blocked, and clean it if necessary
- 2Check the connectors at the throttle unit and the engine control module for contact resistance and oxidation
- 3Use a multimeter to check that the two damper motor wires are not short-circuited to each other and have no contact with ground or voltage
- 4If the fault remains, have a workshop assess the throttle unit and the engine control module, and carry out the adaptation after any replacement
Symptomer du kan merke2
- The engine produces less power than normal
- The idle is uneven
Hva feilen kan påvirke2
- The cruise control is switched off while the fault is active
- The throttle returns to its spring-returned position, because the supply to it is switched off
Generell veiledning for bileiere. Feilsøking på bilen kan peke på en annen årsak.