Autel AutoLink AL539B [30/92] Led lamps not working

 Verify the control module is not defective.

Operating Error

If the scan tool freezes, then an exception occurs or the vehicle‟s

ECU (Engine Control Unit) is too slow to respond to requests. You

need to do the following to reset the tool:

 Reset the scan tool.

 Turn the ignition off and wait for about 10 seconds. Turn the

ignition back to on and continue the testing.

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 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 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 3.8 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.