Ford Escape: Power Steering / Description and Operation - Power Steering - Overview
			
			Overview
 
 The EPAS
 system provides steering assist to the driver by replacing the 
conventional, hydraulic pump system with an electric motor coupled to 
the steering shaft. The system is controlled by the PSCM
 which senses the steering effort using sensors mounted between the 
steering column shaft and the steering gear. Steering assist is provided
 in proportion to steering effort and vehicle speed.
   System Operation
 
 System Diagram
 
 
 
 
 
 
 
 
 Item
 Description
 
 
 1
 
 EPAS Column
 
 
 2
  Motor
 
 
 3
  Position sensor
 
 
 4
  Torque sensor
 
 
 5
 
 PSCM 
 
 
 
 6
 
 GWM 
 
 
 
 7
 
 PCM 
 
 
 
 8
 
 IPC 
 
 
 
 9
 
 BCM 
 
 
 
 10
 
 RCM 
 
 
 
 11
 
 ABS module
 
 
 12
 
 IPMA 
 
 
 
 13
 
 PAM 
 
 
 
 14
 
 SCCM 
 
 
 
 
 
 
 
 Network Message Chart
 
 
 
  
 Module Networ..
   
 
   Other information:
   System Operation
 
 Exhaust Gas Recirculation (EGR) Systems
  The EGR system controls the NOX
 emissions. Small amounts of exhaust gases are recirculated back into 
the combustion chamber to mix with the air to fuel charge. The 
combustion chamber temperature is reduced, lowering NOX emissions
 
 
 Exhaust Gas Recirculation (EGR) System — Differential Pressure Feedback
 The EGR system consists o..
   
   Locating the Charge Port
The charge port is between the front 
left-hand side door and the front left-hand 
wheel well. To open, press the center right 
edge of the charge port door, and then 
release.
Note: Do not force the charge port door 
open or closed. Forcing the door open or 
closed damages the charge port.
Charge Port Indicators
The charge status indicator around the 
charge port indicat..