Service Programming System (Sps) (Remote Procedure) - Isuzu N 2008 Series Workshop Manual

1A-352 Engine Control System (4JJ1)
Service Programming Methods
The two methods of programming a ECM are listed
below:
• Remote Programming
• Pass Thru Programming
For information on programming an ECM using one of
the methods listed
Programming System (SPS) (Remote Procedure) or
Service Programming System (SPS) (Pass-Thru
Procedure).
Before Programming a Control Module
Important: DO NOT program an existing ECM with the
identical software/ calibration file. This procedure is not
a short cut to correct the driveability concern. This is an
ineffective repair. An ECM should only be programmed
when the following occurs:
• When a service procedure instructs you to replace
the ECM.
• An updated software/ calibrations is released.
Ensure that the following conditions are met before
programming an ECM:
• The scan tool PCMCIA card is programmed with
the latest software.
• The TIS 2000 is installed with the latest software.
• The hardware key is plugged into the computer
port.
• Vehicle system voltage:
- There are no charging system concerns. All
charging system concerns must be repaired
before programming the ECM.
- The battery voltage is greater than 24 volts but
less than 30 volts. The battery must be fully
charged before programming the ECM.
- A battery charger is NOT connected to the
vehicles battery. Incorrect system voltage or
voltage fluctuations from a battery charger may
cause programming failure or ECM damage.
- Turn OFF or disable any system that may put a
load on the vehicles battery. Turn OFF or
disable systems such as:
◊ Heating, ventilation, and air conditioning
(HVAC) systems
◊ Headlights
◊ Room lights
◊ Accessory equipment
• The ignition switch is in the proper position. The
scan tool prompts you to turn ON the ignition, with
the engine OFF. DO NOT change the position of
the ignition switch during the programming
procedure unless instructed to do so.
• All tool connections are secure:
- The RS-232 cable
- The connection at the DLC
- The voltage supply circuits
above, refer to Service
• 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
(Remote Procedure)
Notice: Some module will not accept SPS remote
procedure using 10MB PCMCIA card. In such case,
use 32MB PCMCIA card or SPS pass-thru procedure.
The Remote 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 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 a scan tool to the vehicle and obtain the
ECM information using the following procedure:
Notice: Ensure the ECM is installed in the vehicle
and the battery
programming.
a. Install a scan tool.
b. Turn ON the ignition, with the engine OFF.
c. Select Service Programming System (SPS) >
Request Info.
d. 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.
e. Select the vehicle description by following the
on-screen instructions based on stamped VIN
or affixed VIN plate on the vehicle.
f. During obtaining information, the scan tool is
receiving information from all modules at the
same time. But only ECM information is
displayed on the screen.
g. Turn OFF all accessories and press "Okay".
h. Verify that the correct VIN is displayed on the
scan tool. If the VIN is incorrect or no VIN,
record the correct VIN.
2. Turn OFF the ignition.
System (SPS)
is fully charged before