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:
Removal
Side obstacle detection control module
NOTE:
This step is only necessary if the SODL or SODR is being replaced.
NOTE:
This procedure can be used for all locations of the component.
Using a diagnostic scan tool, begin the PMI process for the SODL or SODR following the on-screen instructions.
Remove the rear bumper cover.
Refer to: Rear Bumper Cover (501-19..
System Operation
Component Description
GSM
When the driver needs to change gear position the driver selects P
R
N or D by rotating a GSM dial. Each GSM
rotary dial has hall effect sensors that are used as inputs that the
dial has been rotated. When park is selected above 5 mph neutral is
provided along with a message in the IPC .
IPC
The IPC receives signals..