VOLVO
ECM-91AC - Throttle unit. Current too high
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Dieser Fehlercode hat je nach Modell, Modelljahr oder Motor unterschiedliche Bedeutungen. Wählen Sie die Bedeutung, die für Ihr Fahrzeug gilt.
Gilt für folgende Modelle:
4 ModelleC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (8)
- Volvo C30 (2007–2013)2007–2011Nur Motor: B5244S4
- Volvo C70 (2006–2013)2006Alle Motoren außer: B5254T3
- Volvo C70 (2006–2013)2007–2010Nur Motor: B5244S4, B5244S5
- Volvo C70 (2006–2013)2011Nur Motor: B5244S4
- Volvo S40 (2004–2013)2004Nur Motor: B5244S4, B5244S5
- Volvo S40 (2004–2013)2005–2010Nur Motor: B5244S4, B5244S5, B5244S7
- Volvo V50 (2004–2013)2004Nur Motor: B5244S4, B5244S5
- Volvo V50 (2004–2013)2005–2010Nur Motor: B5244S4, B5244S5, B5244S7
Was bedeutet der Fehlercode?
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.
Mögliche Ursachen
- 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
Was Sie tun können
- 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
Symptome, die Sie bemerken können2
- The engine produces less power than normal
- The idle is uneven
Was der Fehler beeinflussen kann2
- 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
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.