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Home >> Jeep >> 2017 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Transmission Control Module (TCM) - DTCS P0219-00 To P1B13-00) >> DTC Troubleshooting >> P0850-00-Park/Neutral Switch Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
TRS T1 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
TRS T3 SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE
SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE
5 VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE
TRANSMISSION RANGE SWITCH (TRS)
PARK PAWL
ELECTRONIC SHIFT MODULE (ESM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .