VOLVO
CEM-4C01 - Outside temperature sensor. 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 reads the outside sensor, which sits in the left mirror. If the signal is too high, the code is set. The outside temperature gauge then shows a wrong value or does not work.
Mögliche Ursachen
- Signal wire shorted to supply voltage
- An open circuit in the signal wire
Was Sie tun können
- 1With the ignition on, compare the outside temperature in the display with the actual conditions. If it is wrong, the fault is probably permanent
- 2Look at the sensor in the left door mirror and check that it is not damaged, dirty or covered
- 3Check that the connectors in the sensor wiring are seated and not corroded
- 4Have a workshop check the wiring between the CEM, the door modules and the sensor, and the A-pillar connectors, since this needs disassembly
- 5After the work, clear the code and check that the outside temperature is shown correctly
Symptome, die Sie bemerken können1
- The outside temperature gauge does not work
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.