VOLVO
ECM-929C - Engine control module (ECM). Signal too high
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
9 modeliC30 (2007–2013), C70 (2006–2013), S40 (2004–2013), S60 (2001–2009), S80 (1999–2006), V50 (2004–2013), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
Pokaż modele wg rocznika i silnika (23)
- Volvo C30 (2007–2013)2007Tylko silnik: B5254T3
- Volvo C30 (2007–2013)2008–2013Tylko silnik: B5254T7
- Volvo C70 (2006–2013)2006–2007Tylko silnik: B5254T3
- Volvo C70 (2006–2013)2008–2013Tylko silnik: B5254T7
- Volvo S40 (2004–2013)2005–2007Tylko silnik: B5254T3
- Volvo S40 (2004–2013)2008Tylko silnik: B5254T3, B5254T7
- Volvo S40 (2004–2013)2009–2012Tylko silnik: B5254T7
- Volvo S60 (2001–2009)2005–2006Tylko silnik: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2007Tylko silnik: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo S60 (2001–2009)2008–2009Tylko silnik: B5204T5, B5244T5, B5254T2
- Volvo S80 (1999–2006)2005–2006Tylko silnik: B5204T5, B5244T4, B5254T2, B6294S2, B6294T
- Volvo V50 (2004–2013)2005–2007Tylko silnik: B5254T3
- Volvo V50 (2004–2013)2008–2012Tylko silnik: B5254T7
- Volvo V70 (2000–2008)2005Tylko silnik: B5204T5, B5244T4, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2006–2007Tylko silnik: B5204T5, B5244T5, B5254T2, B5254T4
- Volvo V70 (2000–2008)2008Tylko silnik: B5254T2
- Volvo V70 XC / XC70 (2001–2007)2005Wszystkie silniki oprócz: D5244T
- Volvo V70 XC / XC70 (2001–2007)2006Tylko silnik: B5244T4, B5254T2
- Volvo V70 XC / XC70 (2001–2007)2007Tylko silnik: B5254T2
- Volvo XC90 (2003–)2005–2006Tylko silnik: B5254T2, B6294T
- Volvo XC90 (2003–)2007–2012Tylko silnik: B5254T2
- Volvo XC90 (2003–)2013–2014Tylko silnik: B5254T9
- Volvo XC90 (2003–)2015
Co oznacza ten kod błędu?
Although the code is titled signal too high, it concerns the ECM's internal governor for the throttle angle. The code is stored when that governor is damaged, or when its control signal reaches an extreme while the throttle is being controlled. The fault may be permanent or sporadic.
Możliwe przyczyny
- The throttle sticks or is blocked by oil film, dust or similar
- Contact resistance or oxidation between the ECM and the throttle unit
- Open circuit, or short to ground or supply voltage, in the throttle motor wiring
- Short circuit between the throttle motor wires
- A damaged throttle unit
- Faulty software in the ECM
Co możesz zrobić
- 1If you have a diagnostic tool: read the fault status with the engine running. Fault found means permanent, and No fault found means sporadic and not active right now
- 2Check that the connectors at the throttle unit and the ECM are secure and free from corrosion
- 3Check that the throttle moves freely, is not blocked by any object and is not sticking. Clean as needed
- 4Use a multimeter on the throttle motor wiring after open circuits, contact with ground or plus, and shorts between the wires
- 5If you have a diagnostic tool: check in the parameters that the throttle unit adaptation is complete and shows OK. The adaptation itself is carried out by a workshop
- 6The code can be caused by faulty software in the ECM. Checking and installing new software is a workshop job
Objawy, które możesz zauważyć2
- Malfunction indicator lamp (MIL) on
- Reduced engine performance
Na co może wpływać usterka1
- The ECM cuts power to the throttle motor so the throttle goes to its return position, or the fuel supply is temporarily shut off
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.