96-97 Accord 4 cyl to OBD1 Auto Harness Installation Instructions

Please be careful with this harness. The ONLY way to properly function the OBD1 Automatic Accord / Prelude transmission is through the use of the proper transmission control module/unit (TCM/TCU). It is recommended that you use the TCM/TCU for your specific transmission. On the OBD2 chassis, the automatic functions are controlled through the factory ECU. With the OBD1 setup, the automatic functions will be controlled through the OBD1 TCM/TCU.

You will need to have a STOCK wiring harness where it plugs into the ECU. If you need to wire in any additional sensors (ie: wiring in VTEC solenoid for a new engine swap), you will need to wire those into your stock 96-97 Accord ECU plug connectors.

  • Connect the YELLOW wire from the new jumper harness to the shift lock control. If you do not install this wire, you will have to put the key into the console shift lock release to unlock the shifter. To install this wire, splice in the YELLOW wire from the conversion harness to the Green/White wire at the shifter position switch. You will need to remove the console cover to access this multi-wired connector. NOTE: We have found that on some models the shift lock release may still not function and you will need to insert the key into the console shift lock release to unlock the shifter.