Starting System

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

This vehicle is equipped with a PATS that disables the engine from starting if an unprogrammed PATS key is used or an invalid PCM ID is received. The PATS is controlled by the BCM . If there is a PATS concern that disables the engine, the IPC displays the corresponding message in the message center.

Refer to: PASSIVE ANTI-THEFT SYSTEM (PATS) - SYSTEM OPERATION AND COMPONENT DESCRIPTION .

The RFA module in conjunction with the BCM controls the ignition modes and in conjunction with the PCM controls the starting system.

During a start event, when the start/stop switch is pressed in combination with the brake pedal, the RFA module, PCM and BCM receive a request to start the engine. The PCM recognizes the correct inputs from the BCM and TR sensor and provides voltage and ground to energize the starter relay coil and close the starter relay contacts. The starter relay contacts close, providing voltage to the starter solenoid, allowing the starter motor to crank the engine. The PCM disengages the starter motor once an engine RPM threshold is reached, a set crank time is exceeded or the start/stop button is pressed indicating an engine shutdown.