42 TESTER
SELF-TESTS
The Self-Tests check the following Tester:
• Display/LEDs •Data Link
• Keyboard •Autoprobe
• Sound •RS232 port
• Memory/Internal Circuits •Instrumentation port
If the Tester does not pass all of the tests, double check that the Self-Test Adapters
(required for certain tests) are properly installed and making good contact during the
testing.
• Self-Test Adapters are used for the following tests:
TEST ADAPTER
DLC CABLE DLC SELF-TEST ADAPTER
RS232 and INST PORT RS232/IP SELF-TEST ADAPTER
NOTE
Do not connect the DLC cable to the vehicle while the Self-Test
is being performed.
SELF-TEST SETUP
RS232/IP
SELF-TEST
ADAPTER
DLC
CABLE
DC POWER
CABLE
DLC SELF-
TEST ADAPTER
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