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Home >> Jeep >> 2012 >> Patriot Latitude, 2.0 A, Standard >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) - Electrical Diagnostics >> DTC Troubleshooting >> P1661-Sensor Ground Reference Circuit >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

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  STANDARD PROCEDURE  . 

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