Was bedeutet der Fehlercode CEM-1A01?

Diagnose und Fehlercodedefinition für CEM-1A01 (Volvo S60 (2001–2009), Volvo S80 (1999–2006), Volvo V70 (2000–2008)). Steuergerätereparatur bei OBD Tuning.

VOLVO

CEM-1A01 - Upper 30-power supply Open circuit

System

Zentralelektronik (CEM)

Volvo-Modelle, für die dieser Fehlercode gilt

Gilt für folgende Modelle:

5 Modelle

S60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)

Modelle nach Baujahr und Motor anzeigen (5)

Was bedeutet der Fehlercode?

The CEM is supplied from the battery through two separate inputs. If the upper 30 supply is open, the module has no voltage on that side, so for example only one side of the exterior lighting may lack power. The fault is caused by an open circuit or a short to ground in the supply, or by a blown fuse.

Mögliche Ursachen

Open circuit or short to ground on the upper 30 supply
Blown fuse in the battery main fuse box

Was Sie tun können

1Check whether the main fuse at the battery has blown and replace it if needed
2Check with a multimeter that the wire between the CEM and the main fuse is not open when the connectors are disconnected
3Check with a multimeter that the wire has no contact with ground (the bodywork) when the connectors are disconnected
4Check that the connectors are secure and free from corrosion and looseness
5If the fault remains, have a workshop continue the fault-tracing

Symptome, die Sie bemerken können5

The engine does not start
The headlights do not work
The tail lights or brake lights do not work
The turn signals do not work
The windscreen washers do not work

Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.