ecu wiring help

m just overlooking the wiring which has been converted. its a glanza engine loom as most of you know but the remainder of the electronics is sportif. can someone confirm for me that the engine loom only has the 26 and 16 pin plugs ecu side (COM 1/COM 2)?? the 12 pin or COM 3 only connects into the dash loom?? also the only wiring that i am stuck on is check connector outputs, the one being wire 3 CCO. CCO on the N/A loom is pin 3 on COM 2 which is blue/red, this goes into the dash. But CCO on the glanza loom is grey and in my case it runs through the bulkhead into the diagnostics port i believe. is this correct?? this means that this is the only wire on COM 3 that runs into the engine bay.
should CCO on the glanza loom be connected into the dash loom?? onto the blue/red. any help would be great.
 
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