Torque Converter Clutch Solenoid: Testing and Inspection

Circuit F12 splices to feed the ABS control module, PCM, EGR solenoid, leak detection pump, and the duty cycle EVAP/Purge solenoid. The F12 circuit also connects to a bus bar in the Power Distribution Center (PDC) that supplies voltage to the coil side of radiator fan relay, A/C clutch relay, and fuel pump relay.

In the RUN or START position, the ignition switch connects circuit A1 from the fuse block and circuit A21. Circuit A1 connects to battery voltage and is protected by a 30 Amp fuse in the PDC.