Search for "FN2 Civic Type R Electrical Troubleshooting Manual (ETM)" – the Honda factory manual has full fold-out pinout diagrams.
Have a specific pin you need clarified? Drop the code below. fn2 ecu pinout
This information is for educational and diagnostic purposes. Wiring colors and pin functions can vary slightly by market (JDM, UKDM, EDM). Always verify with a multimeter before cutting or splicing wires. The Ultimate Guide to the FN2 Civic Type R ECU Pinout (Plug 37820-RSP) If you are installing an aftermarket ECU (Hondata FlashPro, KPro, Haltech, Link, or Standalone), wiring a wideband input, or chasing an electrical gremlin, you need the pinout for the PNK (Pink) and GRY (Grey) connectors. Search for "FN2 Civic Type R Electrical Troubleshooting