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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (5.7L - DTCS P062A To P1495) >> DTC Troubleshooting >> P0850-Park/Neutral Switch Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
TRANSMISSION RANGE SENSOR (TRS) WIRING ISSUES
COMMUNICATION FAILURE BETWEEN THE PCM AND THE TCM
TRANSMISSION CONTROL MODULE (TCM)

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