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If you go to the electrical section of the service manual you will find diagrams showing the layout of the various wiring harnesses in the car. They start at page 23-15 and go for about 31 pages. The diagrams show each connector on the harness and there is a matching table which identifies what that connector plugs in to. There is more than one wiring harness that passes through the interior of the car. Here is a link to the .pdf of the service manual.www.nsxprime.com/FAQ/Reference/1991_svcman/1991servman.pdfOnce you have figured out what harnesses are missing, go here to find the part numbersWire Harness for 1992 Acura NSX COUPE | Acura OEM PartsMost of the harnesses are no longer available from Acura in the USA. Amayama lists some of the harnesses as still being available; but, they will not list harnesses that are specific to LHD cars. They only list parts that are common with RHD cars.Genuine Honda 32107-SL0-J40 (32107SL0J40) HARNESS, SIDE WIRE for Honda NSX - AmayamaIf you are missing a lot of the wiring and internal modules, get out your money gun and be prepared to do a lot of shooting. Replacing with new parts is going to be really really expensive.
If you go to the electrical section of the service manual you will find diagrams showing the layout of the various wiring harnesses in the car. They start at page 23-15 and go for about 31 pages. The diagrams show each connector on the harness and there is a matching table which identifies what that connector plugs in to. There is more than one wiring harness that passes through the interior of the car. Here is a link to the .pdf of the service manual.
www.nsxprime.com/FAQ/Reference/1991_svcman/1991servman.pdf
Once you have figured out what harnesses are missing, go here to find the part numbers
Wire Harness for 1992 Acura NSX COUPE | Acura OEM Parts
Most of the harnesses are no longer available from Acura in the USA. Amayama lists some of the harnesses as still being available; but, they will not list harnesses that are specific to LHD cars. They only list parts that are common with RHD cars.
Genuine Honda 32107-SL0-J40 (32107SL0J40) HARNESS, SIDE WIRE for Honda NSX - Amayama
If you are missing a lot of the wiring and internal modules, get out your money gun and be prepared to do a lot of shooting. Replacing with new parts is going to be really really expensive.
