VOLVO
ECM-903F - Throttle position (TP). Signal missing. Intermittent fault
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Ten kod błędu ma różne znaczenie w zależności od modelu, rocznika lub silnika. Wybierz znaczenie, które dotyczy Twojego samochodu.
Dotyczy następujących modeli:
5 modeliC70 Cabriolet (1998–2005), C70 Coupé (1998–2002), S70 (1997–2000), V70 (1997–2000), V70 XC (1998–2000)
Pokaż modele wg rocznika i silnika (10)
- Volvo C70 Cabriolet (1998–2005)1999, 2001–2002
- Volvo C70 Cabriolet (1998–2005)2000Wszystkie silniki oprócz: B5244S
- Volvo C70 Coupé (1998–2002)1999Wszystkie silniki oprócz: B5254S DENSO
- Volvo C70 Coupé (1998–2002)2000Wszystkie silniki oprócz: B5244S
- Volvo C70 Coupé (1998–2002)2001–2002
- Volvo S70 (1997–2000)1999Tylko silnik: B5204T3, B5204T4, B5234T3, B5234T7, B5254T
- Volvo S70 (1997–2000)2000Tylko silnik: B5204T3, B5204T4, B5234T3, B5234T7, B5244T
- Volvo V70 (1997–2000)1999Tylko silnik: B5204T3, B5204T4, B5234T3, B5234T7, B5234T8, B5254T
- Volvo V70 (1997–2000)2000Wszystkie silniki oprócz: B5244S, B5244S2, B5244SG, B5244SG2, D5252T MSA 15.8
- Volvo V70 XC (1998–2000)1999–2000
Co oznacza ten kod błędu?
The engine control module (ECM) compares the desired throttle angle with the actual angle, which the throttle module (ETM) reports over CAN. The fault is intermittent: it has occurred on an earlier occasion but is not present right now. The code is set when the actual angle is missing while the desired angle is steady.
Możliwe przyczyny
- The throttle module receives too low a supply, for example from loose connections or low system voltage
- Damaged CAN wires
- Interference on the CAN signal wires
- A damaged throttle module
Co możesz zrobić
- 1If you have diagnostic equipment, read the code status; if it shows the fault is not present now, it has been intermittent
- 2Look for damaged CAN wires and connectors, and use a multimeter to check that the wires have no short to ground or voltage and no break that comes and goes
- 3Check the battery and its connections for contact resistance and oxidation, so that the throttle module receives a steady supply
- 4With the ignition on, gently move the harness and connectors to see whether the fault returns
- 5Clear the code and road test the car to see whether it comes back
- 6If the fault returns, have a workshop check the throttle module and the control modules in the CAN network
Objawy, które możesz zauważyć4
- The accelerator pedal is ignored when braking
- Cruise control cannot be engaged
- Uneven idle
- Jerking during engine braking
Na co może wpływać usterka3
- The throttle closes when braking
- Engine speed is controlled by fuel cut-off, so idle may feel uneven
- Cruise control is off during the driving cycle in which the fault was detected
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.