Starting System: Description and Operation

INTRODUCTION

Starting System Components:

The starting system has:
- Ignition switch
- Starter relay
- PCM Double Start Override
- Transmission Range Sensor
- Wiring harness
- Battery
- Starter motor with an integral solenoid These components form two separate circuits. A high amperage circuit that feeds the starter motor up to 300+ amps, and a control circuit that operates on less than 20 amps.

Melco Starter
The Melco is a permanent magnet starter motor and is available on 3.5L engines. A planetary gear train transmits power between starter motor and pinion shaft. The fields have six permanent magnets.


Supply Circuit And Control Circuit
The starter system consists of two separate circuits:
- A high amperage supply to feed the starter motor.
- A low amperage circuit to control the starter solenoid.