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Home >> Jeep >> 2016 >> Wrangler Rubicon, Automatic Trans >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> (Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P0778-Shift Pressure Solenoid Circuit >> Possible Causes

Possible Causes

Possible Causes
(T77) SHIFT PRESSURE CONTROL CIRCUIT OPEN
(T77) SHIFT PRESSURE CONTROL CIRCUIT SHORTED TO GROUND
(T77) SHIFT PRESSURE CONTROL CIRCUIT SHORTED TO ANOTHER CIRCUIT
SHIFT PRESSURE SOLENOID
TRANSMISSION CONTROL MODULE (TCM)

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to STANDARD PROCEDURE .

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