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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 972 (6.7L Diesel - DTCS P063D To P205D - 2500 Hd & 3500 Hd) >> Diagnosis And Testing >> P0850-Park/Neutral Switch Performance >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2015 RAM 3500 HD and 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

The transmission PRNDL diagnostics will detect transmission stuck in park error, if the vehicle speed is greater than a calibrated threshold and selected gear is PARK according to the received CAN message. It will also detect transmission stuck in drive error, if the engine crank state is seen while the selected gear is DRIVE according to the received CAN message.

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