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Home >> Chrysler >> 2021 >> Voyager LX, Gas >> Repair and Diagnosis >> Transmission >> Automatic Trans >> 948TE/9HP48 Automatic Transmission - DTCS P0219-00 To P1728-00 >> DTC Troubleshooting >> P07B4-00-Park Switch 1 Circuit High >> Possible Causes

Possible Causes

Possible Causes
TRANSMISSION RANGE SENSOR (TRS) SIGNAL CIRCUIT (T3) OPEN CIRCUIT
TRS SIGNAL CIRCUIT (T3) SHORTED TO VOLTAGE
TRS - INTERNAL FAULT
TCM - INTERNAL FAULT

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

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