SECTION VI TROUBLESHOOTING
2005 Tech 2 User’s Guide VI - 4
Tech 2 Self Test Main Menu
Each Tech 2 Self Test main menu selection is explained in detail on the following pages. All users have
access to all the options listed, which are shown in Figure VI-5.
Read all screen instructions and connect or disconnect the appropriate cables and loopback adapters.
Screen messages will be displayed when external loopback connectors are connected. For specific
loopback connection information, refer to Figure III-2, Figure III-4, and Figure VI-4.
F0: Automated Main PCB and VCI Test
Selecting Automated Main PCB and VCI (Figure VI-5) is a quick way to test the performance of the main
Printed Circuit Board (main PCB—the Tech 2 main circuit board) and the Vehicle Communications
Interface (VCI). The Tech 2 displays a test-in-progress screen (Figure VI-6) while performing all the PCB
and VCI tests in sequential order.
Figure VI-4
Connection of DLC loopback adapter to the Tech 2 VCI connector
Figure VI-5
Automated Main PCB and VCI test selected on Tech 2 Self Test main menu
Continued on next page...
Figure VI-6
Automated Main PCB and VCI test results screen
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