Imagine how easy life would be if all problems could be identified immediately and solutions were listed in a handy manual. Unfortunately, life doesn’t work that way, but when it comes to your Honda or Acura, you might be so lucky. Through the interpretation of the malfunction indicator lamp (otherwise known as check engine light) and following the troubleshooting process detailed in the Honda/Acura service manuals, the solutions to many engine problems can be identified faster than ever before. Before ECU trouble codes can be read however, you will have to jump the computer on some vehicles first. On all ‘92 and up models (and ‘90–‘91 Accords), the connector that must be jumped must be found underneath the dash. The connector is located near the ECU on Civics and Integras and behind the center console on Preludes and Accords. Its brown and black wires can identify it and it looks like it isn’t plugged in properly.
You need to short this plug out with a piece of wire or a paperclip. Simply fold the “tool” into a U shape and insert it into the plug. When you do this properly and the ignition is in the on position, the check engine light will light up in the gauge cluster. You can skip this process for most Hondas and Acuras built before 1992. Trouble codes for these vehicles can be read by looking through the small window on the center of the computer.

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