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Thread: Gearbox fault

  1. 24th November 2023, 10:05 PM #1
    old dirt bikes
    old dirt bikes is offline P38 detective
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    Gearbox fault

    Hi Folks, I put my P38 in to have the windows tinted and when I went to pick it up as I drove off it seemed to be in second gear. So I pulled over and turned it off and then restarted it and it seemed to work fine. when I got home and turned it off 'gearbox fault' came up in the message panel. I need to refit all the door trims etc. I pulled off to get the windows tinted. So I have not been driving it at the moment. I don't think the window tint people could have done anything to cause a gearbox fault. So has anyone got any suggestions on where to start looking.
    Thanks, Alan
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  2. 24th November 2023, 10:26 PM #2
    shack
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    What year is the vehicle?

    Do you have any Diag gear?

    If it's a 99+ which it should be I think if it's an "A", then there are a lot of similarities with the auto stuff in doing.

    If it's earlier it's a bit harder..
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  3. 24th November 2023, 10:37 PM #3
    old dirt bikes
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    Gearbox fault

    Hi Shack, my P38 is a early one, 1995 GEMS model. When I get the rear brake light back in I can take it to my mates workshop and plug in his diagnostic scan tool. It has been raining here so I did not want to slide under it at the moment, and I have been helping my daughter and family move house so I have been very busy. But I will get it to the workshop on Monday and check for fault codes.
    Thanks, Alan
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  4. 25th November 2023, 01:06 PM #4
    shack
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    Quote Originally Posted by old dirt bikes View Post
    When I get the rear brake light back in I can take it to my mates workshop
    Was the rear brake light fitted when the fault happened?
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  5. 25th November 2023, 07:22 PM #5
    old dirt bikes
    old dirt bikes is offline P38 detective
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    Gearbox fault

    Hi Shack, No I had removed the rear brake light and the other trims around the rear window for the window tint guys. Are you thinking the brake light being missing could cause the fault. I should have it back together tomorrow, so I will give it a try and see if that cures the problem. I thought only Toyota did things like that. If a brake light bulb on a 200 series blows the motor won't start. Thanks, Alan
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  6. 25th November 2023, 07:25 PM #6
    shack
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    Quote Originally Posted by old dirt bikes View Post
    Hi Shack, No I had removed the rear brake light and the other trims around the rear window for the window tint guys. Are you thinking the brake light being missing could cause the fault. I should have it back together tomorrow, so I will give it a try and see if that cures the problem. I thought only Toyota did things like that. If a brake light bulb on a 200 series blows the motor won't start. Thanks, Alan
    It's certainly worth checking
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  7. 26th November 2023, 08:57 PM #7
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    PeterH
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    Hi Alan, how is your battery?
    A low battery can cause messages like gearbox fault to appear.
    I would also check the battery terminals and give them a clean.
    P38's need a good strong battery or things start going haywire.
    That's this first thing I would check.
    Cheers, Pete.
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  8. 28th November 2023, 10:25 PM #8
    old dirt bikes
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    Gearbox fault

    Hi Folks, sorry for the late reply, I have been sick with the flu. I got the trims back on the P38 with the center brake light working. I started driving to my mates workshop and the gearbox fault was still there. Bugger. I stopped at the lights down the road and turned the motor off and restarted it again and the fault was gone. I checked for faults when I got to my mates workshop and there was no faults. So it must have been the center brake light. I did check the battery terminals and they are all good and the battery is not 12 months old.
    So I am all happy again. Sick as a dog with the flu, but happy. Thanks for your help again.
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  9. 29th November 2023, 08:16 AM #9
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    PeterH
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    Glad that fault has gone, interesting that a brake light could cause that.
    Flu is not fun at all, I hope you are feeling better soon.
    Pete.
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  10. 30th November 2023, 08:36 PM #10
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    Scouse
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    It won't be the lack of a brake light at fault. Neither of my P38s have the centre brake light fitted at the moment.
    Scott
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