303-06C Starting System - 1.6L EcoBoost (132kW/180PS) - Sigma	2013 - 2014 Fusion
Description and Operation	Procedure revision date: 08/1/2012

Starting System - System Operation and Component Description

System Operation

System Diagram

Network Message Chart

Module Network Input Messages Powertrain Control Module (PCM)

Broadcast Message	Originating Module	Message Purpose
Ignition status	BCM	Provides the PCM with ignition mode.
Clutch pedal position	BCM	Provides the PCM with CPP bottom of travel (BOT) switch position

Starting System

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: Perimeter Anti-Theft Alarm - System Operation and Component Description (419-01A Perimeter Anti-Theft Alarm, Description and Operation).

Under normal operation, when the ignition is turned to START, the PCM receives the following inputs:

Request to crank engine message from the BCM
PATS enable message from the BCM
Voltage from the run/start relay
Correct transmission park or neutral input from the automatic transmission
Correct bottom of travel input from the CPP switch (manual transmission)

When the PCM receives the correct inputs, voltage and ground is supplied to the starter relay coil. When the starter relay coil is energized, it provides voltage to the starter solenoid, allowing the starter motor to crank the engine.

The PCM disengages the starter once an engine Revolutions Per Minute (RPM) threshold is reached, a set crank time is exceeded or the ignition is turned OFF.

Component Description

Integrated Keyhead Transmitter (IKT)

Refer to: Perimeter Anti-Theft Alarm - System Operation and Component Description (419-01A Perimeter Anti-Theft Alarm, Description and Operation).

Passive Anti-Theft Transceiver

Refer to: Passive Anti-Theft System (PATS) - Overview (419-01B Passive Anti-Theft System (PATS), Description and Operation).

Ignition Switch

Refer to: Steering Wheel and Column Electrical Components - System Operation and Component Description (211-05 Steering Wheel and Column Electrical Components, Description and Operation).

Powertrain Control Module (PCM)

The PCM provides power and ground to the starter relay to initiate cranking of the engine.