Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information CEM-B112A14

Condition
Central electronic module (CEM) checks activation of a distribution relay for 15-feed. Relay activated at ignition on.
For vehicle with structure week -200945 the relay is located in the rear fuse panel in the luggage compartment.
For vehicle with structure week 200946- the relay is located in the fuse panel in the passenger compartment, beside central electronic module(CEM).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The output to the relay winding is short-circuited to ground.
- The output to the relay winding has an open circuit.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition on.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

Substitute value
- The function switches off permanently after 100 operating cycles where the fault was detected. Erasing diagnostic trouble codes (DTCs) resets the result.

Possible source
- Relay control for relay 2/88 is shorted to ground.
- Open circuit in relay control to relay 2/88.
- Relay damaged/missing.

Fault symptom[s]
- Battery discharges
- All wheel drive doesn't work
- Four-C function not working