Vehicles Without Auto Stop/Start

WARNING: This page is about a different variant/trim than selected.

Engine cranking is requested when the stop/start switch is pressed and the driver has depressed the brake pedal. When engine cranking is requested, the Powertrain Control Module (PCM) checks that a valid key code has been received and the transmission is in P (Park) or N (Neutral) before granting the crank request.

Once engine cranking has been granted, the PCM energizes the starter relay located in the Engine Junction Box (EJB) 2. The closing of the starter relay contacts causes battery voltage to be applied to the starter solenoid in the starter motor. The solenoid is energized and the pinion gear is pushed to engage with the drive plate ring gear. Simultaneously, the starter solenoid contacts close, causing current to flow into the motor brushes and armature. The armature rotational force is transferred to the drive plate ring gear through the pinion gear, rotates the drive plate and starts the engine.

When the engine reaches self-sustaining operating speed, the PCM de-energizes the starter relay to disconnect power from the starter motor and disengage the pinion gear from the drive plate ring gear.