Autel Autolink AL319 - Manual (Page 24)

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Scan tool doesn’t power up
If the scan tool won‟t power up or operates incorrectly in any other
way, you need to do the following to check up:
 Check if the scan tool‟s OBD II connector is securely connected
to the vehicle‟s DLC;
 Check if the DLC pins are bent or broken. Clean the DLC pins if
necessary.
 Check vehicle battery to make sure it is still good with at least 8.0
volts.
LED lamps not working
If you turn on the scan tool and perform the I/M Readiness test but
the LED lamps are not working, there may be several possible causes,
including bad connection and ignition off. In this case, follow these
steps to check the scan tool.

Make sure the OBD II cable is connected to the DLC securely.

Verify the ignition key is in the KOER position.

Run the LED Test in the System Setup menu. (see 3.7 System
Setup). If the scan tool did not pass this test, there is a problem
with the LED lamp. Please contact Autel Tech Support or your
local selling agent.