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Honda Civic EX SRS Light

Q. Hi, I have a 1999 Honda Civic EX sedan. The SRS light came on right after a mechanic restored my horn. The mechanic said all he did was disconnect the battery and when he put it back the malfunction light and SRS light came on. He reset the malfunction light but with the SRS he doesn't know what to do with it.

Honda Civic EX SRS Light

He called a Honda dealer and he was told what he did with the horn should not affect the SRS airbag, is that right? Also called a Honda Dealer they will charge me $80.00 to have a Diagnostic Testing to know why the light is on. Is there a cheaper solution? Can I check something myself?


A. There were three different SRS units used in that car, KEIHIN SRS Unit, NEC SRS Unit, and SIEMENS SRS Unit. Diagnosis depends on which unit it is. The most likely possibility is the connector for the airbag is not on securely.

There is a way to pull the codes from the SRS control unit without a scan tool.

  1. Turn the ignition switch OFF , and wait for ten seconds. Then connect the SCS service connector to the service check connector (2P). If you do not wait ten seconds, the SRS unit will not be completely reset and will not output DTCs.
  2. Turn the ignition switch ON (II). The SRS indicator light comes on for about six seconds and goes off. Then it will indicate the DTC:

    • The DTC consists of a main code and a sub-code.
    • Including the most recent problem, up to three different malfunctions can be indicated.
    • In case of a continuous failure, the DTC will be indicated repeatedly.
    • In case of an intermittent failure, the SRS indicator light will indicate the DTC one time, then it will stay on.
    • If both a continuous and an intermittent failure occur, both DTCs will be indicated as continuous failures.
    • In case the system is normal (no DTC), the SRS indicator light will stay on.
  3. Read the DTC.
  4. Turn the ignition switch OFF , and wait for ten seconds. Then disconnect the SCS service connector from the service check connector (2P).

The SCS Service Tool is nothing more than a jumper wire. When you get the codes let me know and we can plan the next move.

Honda Civic EX SRS Light

Additional Information provided courtesy of ALLDATA

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