Starting System: Description and Operation

Power is supplied at all times
^ to ignition switch terminal (1)
^ through 20 A fusible link (No.61), located in the fuse and fusible link box).
Power supplied at all times
^ to starter relay terminal (3)
^ through 30 A fusible link (letter (d), located in the fuse and fusible link box).
With the ignition switch in the ON or START position, power is supplied
^ through 7.5 A fuse [No. (20), located in the fuse block (J/B)]
^ to theft warning starter relay terminal (1).
Also, with the ignition switch in the START position, power is supplied
^ from ignition switch terminal (5)
^ to starter relay terminal (2).
^ through 7.5 A fuse [No. (24), located in the fuse block (J/B)]
If the theft warning system is not triggered, ground is supplied
^ to starter relay terminal (1).
^ through theft warning starter relay terminal (4)
^ to theft warning starter relay terminal (3).
^ through body grounds (M14) and (M68).
The starter relay is energized and power is supplied
^ from starter relay terminal (5)
^ through starter hold relay terminal (3)
^ to starter relay terminal (2).
^ through diode.
Power is also supplied
^ from starter relay terminal (5)
^ to inhibitor switch terminal (2)
^ through inhibitor switch terminal (1), with the select lever in the P or N position
^ to terminal (2) 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 cylinder block. With power and ground supplied, the starter motor operates.
If the theft warning system is triggered, terminal (2) of the theft warning relay is grounded and power to the inhibitor switch is interrupted.