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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (6.7L Diesel - DTCS P0402 To P1CEF - 2500 & 3500) >> Diagnosis and Testing >> P0850-Park/Neutral Switch Performance >> Theory of Operation

Theory of Operation

WARNING: This page is about a different car, the 2011 RAM Pickup. 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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