Isuzu 4ja1, Workshop Manual

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Engine Control System (4JH1) 6E-259
•
DO NOT disturb the tool harnesses while
programming. If an interruption occurs during the
programming procedure, programming failure or
ECM damage may occur.
•
If you are performing the Pass-Thru programming
procedure using a notebook computer without the
power cord, ensure that the internal battery is fully
charged.
Service Programming System (SPS)
(Remote Procedure)
The Remote Service Programming System (SPS)
method is a three-step process that involves the
following procedures:
1. Connecting the scan tool to the vehicle and
obtaining the information from the engine control
module (ECM).
2. Connecting the scan tool to the terminal and
downloading a new calibration file from the terminal
into the scan tool memory.
3. Reconnecting the scan tool to the vehicle and
uploading the new calibration file into the ECM.
Performing the Remote Procedure
1. Connect the scan tool to the vehicle and obtain the
ECM information using the following procedure:
Important:
Ensure the ECM is installed in the vehicle and the battery
is fully charged before programming.
a. Connect the scan tool to the vehicle data link
connector (DLC), with the engine and the scan
tool OFF.
b. Turn ON the scan tool.
c. Press Enter at the title screen.
d. Turn ON the ignition, with the engine OFF.
e. Select Service Programming System at the Main
Menu.
f. Select Request Info.
g. If there is already stored in the scan tool, the
existing data is displayed on the screen. The
scan tool asks user to keep existing data Keep
Data or Continue to request new vehicle
information from the ECM. If there is no data in
the scan tool, it will immediately start vehicle
identification.
h. Enter the vehicle description by following the on-
screen instructions based on stamped VIN or
affixed VIN plate on the vehicle.
i. During obtaining information, the scan tool is
receiving information from any modules at the
same time. But only ECM information is
displayed on the screen.
j. Turn OFF all accessories and select Continue.
k. Verify that the correct VIN is entered on the
scan tool. If the VIN is incorrect, write down the
correct VIN.
2. Turn OFF the scan tool.
3. Disconnect the scan tool from the vehicle.
4. Turn OFF the ignition.
5. Transfer the data from the terminal to the scan tool
using the following procedure:
Important:
The TIS supports service programming with the scan
tool scan tool only.
a. Connect the scan tool to the terminal.
b. Launch the TIS application at the terminal.
c. Select the Service Programming System at the
main screen.
d. Highlight the following information on the Select
Diagnostic Tool and Programming Process
screen:
•
Select Diagnostic Tool-Select scan tool.
•
Select Programming Process-Identify
whether an existing ECM is being
reprogrammed or an ECM is being
replaced with a new one.
•
Select ECU Location-Select Vehicle.
e. Select Next.
f. Verify the connections on the Preparing for
Communication screen and select Next.
g. Verify the VIN on the Validate Vehicle
Identification Number (VIN) screen and select
Next.
Important:
If the ECM is replaced to new one, VIN does not
displayed. Input correct VIN reading from stamped VIN
or affixed VIN plate on the vehicle. If the ECM from
another vehicle is installed, input correct VIN by same
way.
h. Highlight Engine on the System Type screen
and select Next, if requested.
i. Complete the following information based on
the service ID plate on the Validate Vehicle
Data screen until Next is highlighted:
•
Model
•
Model Year
•
Engine
•
Type of Transmission