Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information DEM-000B

Condition




Differential Electronic Module (DEM) calculates an expected oil pressure increase in the AOC-unit (the mechanical clutch) during driving. The control module checks how reasonable the oil pressure change is by comparing the calculated value with the signal from the oil pressure sensor.
If the signal deviates too much from the expected value the control module interprets this as a malfunction, and the diagnostic trouble code is generated.
The diagnostic trouble code (DTC) can be diagnosed when driving.

Substitute value
- Four wheel drive is disengaged.

Possible source
- Damaged temperature sensor.
- Damaged AOC unit (mechanic clutch).
- Oil leakage.
- Damaged Differential Electronic Module (DEM).

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