VOLVO
CEM-B118C12 - Left blind spot warning indicator. General Electrical Failures. Circuit short to battery
System
Central Electronic Module (CEM)
Volvo models this fault code applies to
Applies to the following models:
3 modelsS60 (2011–), V60 (2011–), V60 Cross Country (2015–)
Show models by year and engine (3)
What does this fault code mean?
The left camera module (LCM) communicates with the CEM via LIN. The fault is stored when the supply wire to the LED in the left blind spot warning indicator is short-circuited to voltage.
Possible causes
- The supply wire to the LED is short-circuited to voltage
What you can do
- 1Check that the fuses are intact
- 2With the engine running, see whether the indicator lights although the function is not activated, then clear the fault code and road test
- 3Check that the wire to the left indicator has no chafing or pinch damage and that the connectors are secure
- 4With the ignition off, use a multimeter to check that the wire has no contact with the battery positive when the connector at the indicator is disconnected
- 5If no fault is found in the wiring, have a workshop with diagnostic equipment check the left camera
Symptoms you may notice2
- The blind spot indicator on the left side does not work as it should
- A text message or warning symbol may appear in the display
General guidance for car owners. Diagnosis on the car can point to a different cause.