VOLVO
ECM-1220 - Electronic throttle module. Faulty signal
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleS40 (1996–2004), V40 (1996–2004)
Modelle nach Baujahr und Motor anzeigen (2)
Was bedeutet der Fehlercode?
The engine control module has found a fault in how the throttle is controlled, or a broken link between it and the throttle module's own control unit. The throttle cannot then be controlled as intended and engine output is limited. The fault can lie in connectors, communication wires or the throttle system control unit.
Mögliche Ursachen
- Contact resistance in the connections
- Communication wires short-circuited to ground or supply voltage, or broken
- Defective throttle system control unit
Was Sie tun können
- 1Read the codes and deal first with those for the throttle system, as ECM-0120, ECM-0225, ECM-1221, ECM-1223, ECM-1224, ECM-1225 and ECM-1228 may share the same cause
- 2Check the connectors to the throttle relay, position sensor, motor, pedal sensor and control units for contact resistance and oxidation
- 3Use a multimeter to check that the communication wires are not broken and have no short to ground or supply voltage
- 4Clear the code and road test to see whether it returns
- 5If nothing is found, the fault may be intermittent or the throttle system control unit may be defective, which a workshop should check
Symptome, die Sie bemerken können4
- Malfunction indicator lamp on
- The car performs worse
- Fuel consumption is high
- Cruise control does not work at all
Was der Fehler beeinflussen kann2
- Engine output is limited
- Cruise control is switched off
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.