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Home >> Volvo >> 2011 >> S80 Base, 3.2 94 >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Differentials & Drive Axles >> Differential Electronic Module (DEM) Diagnostic Trouble Codes >> DEM-P066727: Pcm / ECM / TCM Internal Temperature Sensor Range/Performance. General Signal Failures. Signal Rate Of Change Above Threshold (2007-2008) >> Diagnostic Trouble Code (DTC) Information DEM-P066727
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Diagnostic Trouble Code (DTC) Information DEM-P066727

Condition 

The Differential Electronic Module (DEM) has a temperature sensor fitted on the control module's circuit board. If the temperature exceeds a preset value all wheel drive is disabled. This is to protect the gear box from too high load, which can result in internal mechanical faults.

The diagnostic trouble code (DTC) is stored if the control module detects that:

The control module's test for the diagnostic trouble code (DTC) starts in the event of:

Fig 1: Identifying Differential Electronic Module (DEM)
GLL106599Courtesy of VOLVO CARS CORPORATION

Substitute Value 

Possible Source 

Fault symptom[s]