Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information DEM-P188912
Condition
The Differential electronic module (DEM) checks the performance of the feed pump. The control module compares the signal from the oil pump to the predefined parameters.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The signal from the oil pump is outside the parameters.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Engine running.
Substitute value
- Four wheel drive is disengaged.
Possible source
- Short-circuit to supply voltage in the signal cable.
Fault symptom[s]
- All wheel drive doesn't work