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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.

Parts List:


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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