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ENGINE
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EMS DIAGNOSTIC PROCEDURE
1] General
The Engine Management System ECU controls the
complete functioning of Engine.
The Micro-controller inside the ECU, evaluates
continuously the signal from the all the sensor.
Based on this data the ECU controls parameters
like air / fuel quantity.
1.1] Salient Features
The Diagnostic tester software
(Part
No .2103
2262 99 37)
for EMS ECU module has a capability
to communicate with the ECU on a serial K-line
interface. The Tester comprises a interface unit and
custom built application software which is user
friendly. The user can load it on laptop/Desktop PC.
The interface unit is light weight and compact in
size to facilitate easy portability. This works on
vehicle battery supply.
This tester will execute all the commands
supported by ECU, which help in diagnostic of the
EMS ECU system.
This diagnostic unit is capable of performing the
following functions
1) Read ECUData
2) Read Failure Codes
3) Clear Failure Codes
4) Read Sensor Data
5) Read EngineData
6) Read SystemData
7) ActuatorTest
8) Leak detection test
9) Replace System
l
Read C2I data (Refered as
I
2C in other
section)
l
Write C2I individual
l
Write C2I All
l
Enter VIN data
2] Connection Details
Required power supply:-
Power supply for the Laptop/Desktop
The Interface Unit does not require any
external power supply. It works on vehicle
battery, provided through the OBD cable.
Connect the RS232 cable to the Laptop/
Desktop COM port
The OBD cable is connected to the Diagnostic
connector of the wiring harness.
3] Specification
3.1] Laptop / PC
Operating system :- WIN 2000 /WIN XP
or later version
CPU Speed
:- Pentium 4
RAM
:- 256 MB
Video Display
:- 800 x 600
resolution with 24
bit colour
RS232 port
: - Minimum 1No.
CD ROM Drive
Printer Port (optional)
The software works with the above features of a
Desktop/ Laptop PC.
Any other combination of speed and RAM less
then specified will slow down the response of
the software.
3.2] Interface Unit
Interface unit from M/s Silicon Engines, USA
OBD cable
RS232 cable