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STARTING SYSTEMS TABLE OF CONTENTS page page DESCRIPTION AND OPERATION STARTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DIAGNOSIS AND TESTING CONTROL CIRCUIT TEST . . . . . . . . . . . . . . . . . . . 1 REMOVAL AND INSTALLATION SAFETY SWITCHES . . . . . . . . . . . . . . . . . . . . . . . 6 SPECIFICATIONS DESCRIPTION AND OPERATION STARTER DESCRIPTION BOSCH AND MELCO STARTERS The Bosch and Melco are permanent magnet starter motors. A planetary gear train transmits NIPPONDENSO STARTER The Nippondenso is a reduction gear-field coil starter motor and is available on 2.4L engine. OPERATION The starting system has: • Starter relay • Clutch Pedal Position Switch with manual transmissions • Powertrain Control Module (PCM) • Wiring harness • Battery • Starter motor with an integral solenoid high amperage circuit that feeds the starter motor up The Powertrain Control Module (PCM) controls a double start over ride safety that does not allow the DIAGNOSIS AND TESTING CONTROL CIRCUIT TEST The starter control circuit has: • Starter relay • Transmission range sensor, or Park/Neutral Position switch with automatic transmissions • Clutch Pedal Position Switch with manual transmissions • Ignition switch • Battery • All related wiring and connections CAUTION: Before performing any starter tests, the • To disable ignition and fuel systems, disconnect the Automatic Shutdown Relay (ASD). The ASD relay STARTER SOLENOID WARNING: CHECK TO ENSURE THAT THE TRANS- (1) Verify battery condition. Battery must be in good condition with a full charge before performing (2) Perform Starter Solenoid test BEFORE per- forming the starter relay test. (3) Raise the vehicle. starter solenoid for corrosion, loose connections or (5) Lower the vehicle. JX STARTING SYSTEMS 8B - 1 |