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After replacing alternator and main fuse relay what are my steps? Idle relearn ? Ect. My car is idling hard Trac, vsc off, and engine light on.
What makes this problem better or worse?
Unplug n plugging battery cables
How long has your 2008 Toyota Highlander had this problem?
Couple months
1 Reply
Idle re-learn will take place automatically after engine / vehicle is operated for a few minutes. I suspect there are more problems that need to be addressed. *Hands-on* testing / diagnosis will be required.. Good luck!