A/T Models

Power is supplied at all times:
^ to ignition switch terminal (1)
^ through green fusible link (located at the battery positive terminal).
With the ignition switch in the ON or START position, power is supplied:
^ to inhibitor switch terminal (1)
^ through 10 A fuse (No. 11, located in the fuse block).
With the ignition switch in the START position, power is supplied:
^ from ignition switch terminal (4)
^ to inhibitor relay terminal (3) (without ASCD) or
^ to inhibitor relay terminal (7) (with ASCD).
Power is supplied:
^ from inhibitor switch terminal (2) (with selector lever in the P or N position)
^ to inhibitor relay terminal (1).
Ground is supplied:
^ to inhibitor relay terminal (2)
^ through body grounds (M49), (M105), and (M160).
With power and ground supplied, the inhibitor relay is energized and power is supplied:
^ from inhibitor relay terminal (5) (without ASCD) or
^ from inhibitor relay terminal (6) (with ASCD)
^ to terminal (1) of the starter motor windings.
The starter motor plunger closes and provides a closed circuit between the battery and the starter motor. The starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the engine starts.