Wiring help with HO Alternator Please!! - Toyota Yaris Forums

11-15-2012, 10:11 PM

Yaris Lighter

Drives: Red Yaris Sedan '07

Join Date: May 2010

Location: Texas

Posts: 4

Quote:

Originally Posted by CTScott

So, the HO doesn't have the pink "M" wire? That wire goes to the ECM and the A/C ECU as a signal that tells them if the alternator is outputting power, so they know if it is OK to run various high current functions.

In your case, you would now just cap that pink wire off.

Thank you so for your reply Scott! I shall do just that!
But I just want to double check.
Will I then have a problem with the ECM and A/C ECU not receiving that signal or will it not really effect anything worth worrying about?

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