Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information DEM-0003

Condition




The differential electronic module (DEM) checks its voltage supply by comparing the voltage between the differential electronic module (DEM) and the central electronic module (CEM).
Diagnostic trouble code (DTC) is stored if the control module registers a difference in the power supply between the central electronic module (CEM) and the differential electronic module (DEM) which is greater than 2.5 V.
The diagnostic trouble code (DTC) can be diagnosed when the ignition has been on for 10 seconds.

Substitute value
- Four wheel drive is disengaged.

Possible source

Signal too high:
- Short-circuit to supply voltage in signal cable.

Signal too low:
- Short-circuit to ground in the signal cable
- Open-circuit in the power supply.

Fault symptom[s]
- Four wheel drive is not functioning.