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Home >> Jeep >> 2015 >> Patriot Limited, AWD, Automatic CVT Trans >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> (Transmission Control Module (TCM) - Electrical Diagnostics - CVT Automatic Transmission) >> DTC Troubleshooting >> P1661-Sensor Ground Reference Circuit >> Possible Causes
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Possible Causes

Possible Causes
(T13) SENSOR GROUND CIRCUIT OPEN
INTERNAL TRANSMISSION
TRANSMISSION CONTROL MODULE

Always perform the CVT Pre-Diagnostic Troubleshooting procedure before proceeding.  Refer to CVT TCM - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE 

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