Quote:
Originally Posted by VetteMed
Jump A to G to display CCM codes.
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On a 90 you can get at the ECM codes from the CCM entery.
After in the CCM diag mode press TRIP RESET a few times till
you see 4.0. Then Press TRIP ODD a few times till 4.7 is displayed.
Press ENG/MET and hold till "---" is displayed.
You're there.