1500 4x4 Pickup V8-360 5.9L Magnum (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 3 in the Power Distribution Center (PDC) to circuit
A21. Circuit A21 powers circuit F18 through fuse 9 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 K30. Circuit K30 connects to cavity B3O of the PCM.
When the PCM grounds the relay, the relay contacts connect circuit A14 from fuse 8 in the PDC to circuit Tl6. Circuit T16 powers the solenoids.
