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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 233 (DTCS P0219 To P1D93 - 8HP45 Automatic Transmission - 1500) >> Diagnosis And Testing >> P1D77-Park Solenoid Range/Performance >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2013 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

Solenoid Monitoring:  The Transmission Control Module (TCM) measures the actual solenoid voltages and compares them to calibrated table to identify the following electrical failures. Short to battery, open circuit and short to ground in case the solenoid is switched on (i.e. commanded control value is 100%), the diagnostic can not distinguish between short to ground and open circuit. In that case the TCM status information is used to detect the failure.

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