Overdrive Solenoid: Testing and Inspection

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 fuse 7 in the Power Distribution Center (PDC).

Circuit A21 splices to supply battery voltage to the EVAP/Purge solenoid, EGR solenoid, torque converter clutch (TCC) solenoid, data link connector and provides an input to the PCM.