VOLVO
CEM-1A22 - Engine control module (ECM). Signal too high
System
Zentralelektronik (CEM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
5 ModelleC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)
Modelle nach Baujahr und Motor anzeigen (5)
Was bedeutet der Fehlercode?
The CEM checks the start signal to the ECM and has registered that the signal is too high. The fault code is set when the signal wire is short-circuited to supply voltage. The fault is not visible to the driver.
Mögliche Ursachen
- Signal wire short-circuited to supply voltage
Was Sie tun können
- 1With a diagnostic tool, read the start-signal status and change the key position; if it stays the same, the fault is permanent
- 2Check that the connectors at the CEM are secure and clean
- 3Check with a multimeter that the signal wire has no voltage when the ignition is off and the connector is disconnected
- 4If the fault remains, have a workshop continue the fault-tracing
Symptome, die Sie bemerken können1
- No noticeable symptoms for the driver
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.