Ford Escape: Electronic Engine Controls / Description and Operation - Electronic Engine Controls - Overview
Overview
The
EEC system provides optimum control of the engine through the enhanced
capability of the powertrain control module (PCM). The EEC system also
has an on board diagnostic (OBD) monitoring system with features and
functions to meet federal regulations on exhaust emissions.
The
EEC system has two major divisions: hardware and software. The hardware
includes the PCM, sensors, switches, actuators, solenoids, and
interconnecting terminals. The software in the PCM provides the strategy
control for outputs (engine hardware) based on the values of the inputs
to the PCM.
The
PCM receives information from a variety of sensor and switch inputs.
Based on the strategy and calibration stored within the PCM, the PCM
generates the appropriate output. The system is designed to minimize
emissions and optimize fuel economy and driveability. The software
strategy controls the basic operation of the engine, provides the OBD
strategy, controls the malfunction indicator lamp (MIL), communicates to
the scan tool over the data link connector (DLC), allows for flash
electrically erasable programmable read only memory (EEPROM), provides
idle air and fuel trim, and controls failure mode effects management
(FMEM)
Reference Value Symptom Chart
NOTE:
The Reference Value Symptom Chart provides guidance in
selecting the appropriate parameter identification (PID) or measured
signal related to the fault area...
LH Engine Sensor Locations
Item
Description
1
CHT sensor
2
CMP sensor
3
KS
4
MAPT sensor
5
VCT oil control solenoid
Electronic Engine Controls - RH
Item
Description
1
Catalyst monitor sensor
2
CKP sensor
3
HO2S
Powertrain Control Module (PCM)
Item
Description
1
PCM
..
Other information:
HF45 Transmission
Item
Part Number
Description
1
70487048
Input shaft oil seal
2
11771177
Right Hand (RH) halfshaft seal
3
----
Damper housing/cover assembly to transmission case bolts (27 required)
4
79757975
Damper housing
5
7F4097F409
Transmission oil sump baffel
6
7D2887D288
Oil collector plate
7
7D288..
Check
With the vehicle in NEUTRAL, position it on a hoist.
Refer to: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation).
Remove and discard the RDU fluid fill plug.
If fluid level is low, check and top off the RDU with clean RDU fluid.
The RDU fluid level should be within 2mm (0.079 in.) from the fluid
..