Starting System Components

Starter Motor 

The starter motor is used to crank the engine. When the S terminal is supplied with electric power, the starter motor plunger closes and the motor is supplied with battery power. The starter motor is grounded to the cylinder block. With power and ground supplied, the starter motor operates.

Transmission Range Switch 

Transmission range switch supplies power to the starter relay inside the IPDM E/R when the shift selector is placed in the P or N position.

Engine Control Module (ECM) 

ECM controls the starter relay inside IPDM E/R.

Intelligent Power Distribution Module Engine Room (IPDM E/R) 

When the ignition switch is in the start position the CPU inside IPDM E/R is used to operate the starter relay.

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