RAM 3500 Van V8-5.2L CNG VIN T (1996)
Transmission Control System Relay: Description and Operation
CIRCUIT OPERATION
The electronic transmission relay powers the overdrive solenoid, torque convertor clutch solenoid, and variable force solenoid. All three solenoids
are molded together.
When the ignition switch is in the START or RUN positions, it connects circuit A1 from fuse 15 in the Power Distribution Center (PDC) to circuit
A21. Circuit A21 powers circuit F18 through fuse 19 in the fuse block. Circuit F18 powers the coil side of the electronic transmission relay. The
Powertrain Control Module (PCM) provides ground for the relay on circuit T30. Circuit T30 connects to cavity B30 of the PCM.
When the PCM grounds the relay, the relay contacts connect circuit A14 from fuse 8 in the PDC to circuit T20. Circuit T2O powers the solenoids.
