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Home >> Jeep >> 2007 >> Compass Limited, FWD, Automatic CVT >> Repair and Diagnosis (Single Page) >> Transmission >> Transmission Control Systems >> (Continuously Variable Transmission (CVT) - Electrical Diagnostics) >> CVT - Electrical Diagnostics >> 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. See STANDARD PROCEDURE .

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