92-95 Honda Civic Main Relay Repair

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92-95 Honda Civic Main Relay Repair

Post by admin » Wed May 24, 2017 7:58 pm

Normally in changing weather conditions going from cool to hot, Honda vehicles will occur a common known problem that some of the earlier models suffered from. The main relay on older model Honda and Acura models will heat up from weather conditions and from aging, the solder joints on the main relay will begin to crack. This results in a loss of power to the joint which controls the power, fuel and ignition. Your 92-95 Civic or other model suffering from this problem, will not start. Luckily it is easily diagnosed and easy to fix or replace.
main-relay-fuse-92-95-civic.jpg (50.64 KiB) Viewed 103 times
92-95-civic-main-relay-diagram.gif (11.56 KiB) Viewed 103 times
92-95-honda-civic-main-relay-solder.jpg (205.94 KiB) Viewed 103 times

Diagnosing the main relay:
    1st clue, your car will not start.
      2nd clue, your check engine light will stay on when you turn the key over.
        3rd clue, you should hear three clicks from the relay/dash.

        Turn ignition to ON (but not to START): Click 1
        Check Engine light goes off: Click 2
        You now turn the key to START: Click 3

        If you have a bad main relay, your car will not start and it will most likely be on a hot day after you have been driving it.
        Sometimes you can unplug it from underneath the steering column on the left side by your left foot, like the image above.
        Then let it cool off out of the car for a minute and then try plugging it back into the connector.

        If this doesn't work you will need to resolder the joints on the relay or replace it.

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