92-95 Civic Auto to 94-95 Integra LS OBD1 Auto ECU / TCU Harness Installation Instructions

Please be careful when installing this harness. Incorrect installation may cause damage to your vehicle and/or engine computer. There are 10 wires that need to be connected at the transmission for proper operation. The 92-95 civic auto transmission has fewer controls/sensors than the 94-95 Integra auto transmission, so these wires must be added to the vehicle (via the pigtails on this jumper harness) in order to operate the Integra transmission in this vehicle.



    Installation:

    Plug the 92-95 Civic's three factory wire harness ECU connectors A, B, and D into the jumper harness' large female connector. Connect the jumper harness' ECU connectors A, B, and D into the new ECU. Plug the jumper harness' two TCU connectors into the new TCU. Follow the steps below to connect the pigtails and finish the installation:

  • 1. Connect the purple wire to the transmission countershaft input.
  • 2. Connect the gray wire to the transmission countershaft ground.
  • 3. Connect the green wire to the transmission mainshaft input.
  • 4. Connect the blue wire to the transmission mainshaft ground.
  • 5. Connect the white wire to the transmission shift control solenoid A.
  • 6. Connect the yellow wire to the transmission shift control solenoid B.
  • 7. Connect the black wire to the D4 indicator.
  • 8. Connect the orange wire to ATPR.
  • 9. Connect the red wire to ATP2.
  • 10. Connect the brown wire to ATP1.
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