Starting System: Description and Operation
The starting system consists of the following:^ battery
^ ignition switch
^ Transmission Range (TR) sensor
^ inhibit relay
^ anti-theft relay (if equipped)
^ starter motor
Starter Motor
The starter motor:
^ is a permanent-magnet, gear reduction, 12V DC motor.
^ has an integral starter solenoid.
Inhibit Relay
The inhibit relay:
^ is a mini ISO relay.
^ switches power to the starter solenoid to engage the starter motor when it receives a START signal from the ignition switch.
Transmission Range (TR) Sensor
The TR sensor enables the circuit to the inhibit relay in the PARK or NEUTRAL position only.
Anti-Theft Relay (If Equipped)
The anti-theft relay:
^ is a normally closed relay.
^ is grounded by the anti-theft system, which opens the relay contacts and disables the starting circuit.