Starting System

NOTE: This vehicle is equipped with Passive Anti-Theft System (PATS) that disables the engine from cranking if an unprogrammed Passive Anti-Theft System (PATS) key is used or an invalid Powertrain Control Module (PCM) ID is received. Passive Anti-Theft System (PATS) is controlled by the Body Control Module (BCM). If there is a Passive Anti- Theft System (PATS) concern that cause the engine to be disabled, the Instrument Panel Cluster (IPC) displays "STARTING SYSTEM FAULT" in the message center. For additional information, REFER to PASSIVE ANTI-THEFT SYSTEM (PATS) - WITHOUT INTELLIGENT ACCESS (IA) .

The Remote Function Actuator (RFA) module in conjunction with the Body Control Module (BCM) controls the ignition modes and in conjunction with the Powertrain Control Module (PCM) controls the starting system.

Under normal operation, during a start event, the start/stop switch is pressed in combination with the brake pedal, the Remote Function Actuator (RFA) module, Powertrain Control Module (PCM) and Body Control Module (BCM) receives a request to start the engine.

The Powertrain Control Module (PCM) recognizes the correct inputs from the Body Control Module (BCM) and Transmission Range (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 Powertrain Control Module (PCM) disengages the starter motor once an engine Revolutions Per Minute (RPM) threshold is reached, a set crank time is exceeded or the stop/start button is pressed indicating an engine shutdown.