Repair Safety Notice:
This information is for general instructional purposes only. Vehicle repair can be dangerous.
Verify all information, follow manufacturer service procedures, use proper tools and safety equipment,
and consult a qualified repair shop when needed.
ASEMASTER6371
AUTOMOTIVE REPAIR CONTRIBUTOR
52,796 POSTS
There is an electronic load detector or ELD built into the ECM.
The whine is when it is charging a lot of current.