Use of Special Tools

WARNING: TO AVOID DEPLOYMENT WHEN TROUBLESHOOTING THE SRS, DO NOT USE ELECTRICAL TEST EQUIPMENT SUCH AS A BATTERY-POWERED OR AC-POWERED VOLTMETER, OHMMETER, ETC., OR ANY TYPE OF ELECTRICAL EQUIPMENT OTHER THAN THAT SPECIFIED. DO NOT USE A NONPOWERED PROBE-TYPE TESTER. INSTRUCTIONS MUST BE FOLLOWED CAREFULLY, OTHERWISE PERSONAL INJURY MAY RESULT.

Scan Tool Diagnostics
A scan tool is used to read current and history diagnostic trouble codes and to clear all diagnostic trouble codes after a repair is completed. The scan tool must be updated to communicate with the SRS through a replaceable cartridge before it can be used for SRS diagnostics. To use the scan tool, connect it to the data link connector and turn the ignition switch "ON". The scan tool reads serial data from the SDM "Serial Data" line terminal "24" to the data link connector terminal "9".

Use Of Special Tools

WARNING: TO AVOID DEPLOYMENT WHEN TROUBLESHOOTING THE SRS, DO NOT USE ELECTRICAL TEST EQUIPMENT SUCH AS A BATTERY-POWERED OR AC-POWERED VOLTMETER, OHMMETER, ETC, OR ANY TYPE OF ELECTRICAL EQUIPMENT OTHER THAN THAT SPECIFIED IN THIS MANUAL. DO NOT USE A NON POWERED PROBE-TYPE TESTER. INSTRUCTIONS IN THIS MANUAL MUST BE FOLLOWED CAREFULLY, OTHERWISE PERSONAL, INJURY MAY RESULT. YOU SHOULD BE FAMILIAR WITH THE TOOLS LISTED IN THIS SECTION UNDER THE HANDLING SRS SPECIAL TOOLS.

You should be able to measure voltage and resistance. You should be familiar with proper use of a scan tool such as the Tech 2 Diagnostic Computer, SRS Driver/Passenger Load Tool J-41433, Connector Test Adapter Kit J-35616-A, and the DVM (Digital Multimeter) J-39200.






Tech 2 Scan Tool
From 98 MY, Isuzu dealer service departments are recommended to use Tech 2. Please refer to Tech 2 scan tool user guide.

Getting Started
Before operating the Isuzu PCMCIA card with the Tech 2, the following steps must be performed:

1. Insert the Isuzu 98 System PCMCIA card (1) into the Tech 2 (5).
2. Connect the SAE 16/19 adapter (3) to the DLC cable (4)
3. Connect the DLC cable to the Tech 2 (5)
4. Make sure of the vehicle ignition is off.
5. Connect the Tech 2 SAE 16/19 adapter to the vehicle ALDL/DLC connector.

Data Link Connector:

6. Turn on the vehicle ignition switch.
7. Verify the Tech 2 power up display.






NOTE: The RS232 Loop back connector is only used to diagnosis Tech 2. Refer to user guide of the Tech 2.






Operating Procedure
The power up screen is displayed when you power up the tester with the Isuzu systems PCMCIA card. Follow the operating procedure.