Ford Escape: Passive Anti-Theft System (PATS) / Description and Operation - Passive Anti-Theft System (PATS) - Overview
Overview
The PATS deters the vehicle from theft by preventing the vehicle
from starting unless a programmed PATS key is in the ignition lock
cylinder.
PATS does not disable a vehicle that is already running.
System Operation
System Diagram
Item
Description
1
PCM
2
BCM
3
IKT
4
PATS Enable
5
PATS Transceiver
6
ABS
Network Message Chart
Module Network Input Messages - BCM
Broadcast Message
Originating Module
Message Purpose
PATS start request target d..
Other information:
Item
Description
1
Driver side register
2
In-vehicle temperature & humidity sensor
3
Driver side register air discharge temperature sensor
4
Center registers
5
Passenger side register
6
HVAC control module
7
Driver side footwell air discharge temperature sensor
Item
Description
1
Climate control housing
..
Inspection
NOTE:
Procedure 1 — Ambient Temperature below 21 °C (70 °F).
NOTE:
Proper A/C system diagnosis on a vehicle’s
compressor is dependent on correct refrigerant system charge and tested
in ambient temperatures above 21°C (70°F). Perform the following steps
to achieve normal operating pressures.
Drive the vehicle or run the engine until it reaches normal operati..