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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 >> P0748-Modulator Pressure Solenoid Circuit >> Possible Causes

Possible Causes

Possible Causes
(T76) MODULATION PRESSURE CONTROL CIRCUIT OPEN
(T76) MODULATION PRESSURE CONTROL CIRCUIT SHORTED TO GROUND
(T76) MODULATION PRESSURE CONTROL CIRCUIT SHORTED TO ANOTHER CIRCUIT
MODULATING PRESSURE CONTROL SOLENOID VALVE
TRANSMISSION CONTROL MODULE (TCM)

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