These connectors are for connecting to the service computer, right?
On the Starboard side of the engine.
Screenshot_20220812-172958_Photo Editor.jpg
These connectors are for connecting to the service computer, right?
On the Starboard side of the engine.
Screenshot_20220812-172958_Photo Editor.jpg
1999 TR-21
Optimax 225 Serial Number 0G842489
The two-pin plug: YES.
The single PURPLE connector: NO (that's a test point for 12V Key-Switched power).
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
Should they have caps on them?Originally Posted by EuropeanAM
1999 TR-21
Optimax 225 Serial Number 0G842489
Yes. There may be a cap affixed to the side of the engine (or PCM) for the diagnostic connector.
Dual Mercury Master Technician- for Mercury Outboards, Mercruiser and Mercury Racing at European Marine in Greenville, SC.
Still consider myself a "Marine Apprentice" after 47 years (learn something new every day).
Mercury Parts, Mercury Outboards, Smartcraft & Accessories, Injector Service, TDR Reeds- BBC Sponsor
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