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  • [Corsa C 2000-2006] OBDII Code Reader Erasing Codes

    I got a hold of a friends OBDII code reader. Its a MaxiScan MS300

    In the instructions it states the following in the section about deleting error codes.

    CAUTION: Erasing the Diagnostic Trouble Codes allows the Scan Tool to delete not only the codes from the vehicle's on-board computer, but also Freeze Frame data and manufacturer specific enhanced data. Further, the l/M Readiness Monitor Status for all vehicle Monitors is reset to Not Ready or Not Complete status. Do not erase the codes before the system has been checked completely by a technician.

    Can i assume this is not a big deal to erase the any codes AND at the same time reset the readiness monitors to Not Ready. Don't they go to ready after a good drive?

    Thanks in advance

  • #2
    Basically yes. On some cars you'll find the performance is reduced until they've all cycled through.

    The advise not to erase until checked only really applies if you're chasing a problem.
    1972 Viva restoration thread - http://www.thecorsa.co.uk/projects-b....html#post1534

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    • #3
      Thanks
      grwalker
      'LS' Member
      Last edited by grwalker; 21-09-2016, 06:43 AM.

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      • #4
        Here's a question. The gas/brake pedal test showed a code of 0141. Yet when i scanned with the reader, it said no codes?

        I am wondering why?

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        • #5
          Most generic code readers seem not to be 100% accurate. I've had plenty of times people have had cars tested at a local workshop and found no codes, but opcom always spots the problem for me. Especially true with old / non-current codes.
          1972 Viva restoration thread - http://www.thecorsa.co.uk/projects-b....html#post1534

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          • #6
            Hmmm, that is annoying

            I had two codes cleared at the local garage last week. Then a few days later I checked using the gas/brake pedal test and found one code mentioned above, which was the same as one deleted at the garage. That's when i got hold of my friends reader.

            Just to see if the reader was working I did use the erase function and it cleared the code, verified by using the
            gas/brake pedal test.


            grwalker
            'LS' Member
            Last edited by grwalker; 21-09-2016, 11:48 AM.

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            • #7
              Invest in opcom - for Vauxhalls it's the best thing other than the full dealership diagnostic kit (which is slightly more expensive!)
              1972 Viva restoration thread - http://www.thecorsa.co.uk/projects-b....html#post1534

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