Autel AUTOLINK AL529 Manual page 61

RED LED – your vehicle is Not Ready. Indicates that the number of
2)
Monitors supported by the vehicle which have run and performed their
self-diagnostic testing is out of the allowed limit.
Audio Tone Interpretation
The audio tone could be configured according to the I/M Readiness Status.
This function is invaluable when performing diagnostics and driving at the
same time, or working in bright areas where LED illumination alone is not
sufficient.
LED Light
Green
Red
Table 5-1
Audio Tone
Two long beeps
No beep
57
Beep Interval
2 minutes