FixVault

Possible Causes

Possible Causes
(T78) SOLENOID SUPPLY 1 CIRCUIT OPEN
(T78) SOLENOID SUPPLY 1 CIRCUIT SHORTED TO GROUND
(T812) PRESSURE CONTROL SOLENOID - LINE PRESSURE CIRCUIT OPEN
(T812) PRESSURE CONTROL SOLENOID - LINE PRESSURE CIRCUIT SHORTED TO GROUND
(T812) PRESSURE CONTROL SOLENOID - LINE PRESSURE CIRCUIT SHORTED TO VOLTAGE
PRESSURE CONTROL SOLENOID - LINE PRESSURE
TRANSMISSION CONTROL MODULE (TCM)

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