Electronic 4WD reset Procedure - Page 2





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  1. #21
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    Is no.1 on the attached diagram the one I should check?
    Attached Images Attached Images  

  2. #22
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    It's number 1, and I don't know if it's "Normally open" or "Normally closed"


    You putting into gear, and it then works will tell you that's where the problem is.


    Also check where the switch is for checking the clutch. It could be either.
    Sakkie Coetzee

    Some people say I have a "short temper"....I see it as swift and assertive reaction to Bull!

  3. #23
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    I think the clutch switch is at the pedal.
    I will check the switches and check if they state NO or NC in the manual.
    Thanks for the reply, I will let you know if it works.

  4. #24
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    OK, I unplugged the Neutral Switch connector on the gearbox and tried 4L, did not work.
    I then used a paperclip to short the 2 connector pins (not very scientific, but I did not have a multimeter) and tried 4L again, but still no success.

  5. #25
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    Be careful, I don't know in this case, but some of these are not just simple switches, they switch between two different resistors, so it might NOT be just pure on or off.


    Measure the gearbox side for connectivity and/or resistance. Get somebody to change between in gear and neutral and measure the change. If there is change, then the switch works, if there are no change.....
    Sakkie Coetzee

    Some people say I have a "short temper"....I see it as swift and assertive reaction to Bull!

  6. #26
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    I will try that.
    I saw that the insulation is damaged where the switch wire goes into the switch body, but the wire seems ok.
    I will check the resistance next.
    Thanks

  7. #27
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    The park neutral switch circuit is normally closed.
    The reverse light switch is normally open.
    I wa supplied with a reverse switch instead of a park neutral.
    A looot of searching before I realised the mistake.
    Check that

  8. #28
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    Just a note.
    Make sure that the washer thickness on the switch is correct.
    I destroyed one with a washer being too thin.
    Cant remember the thickness though.

  9. #29
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    I uplugged the neutral switch and tried it, and also shorted the wires at the connector and tried it, so I dont think it's the switch. I also checked the clutch switch with a multimeter and it's also working. Still no low range.

  10. #30
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    Have you tried switching from 2H to 4L ? Does the t/case react?
    Sakkie Coetzee

    Some people say I have a "short temper"....I see it as swift and assertive reaction to Bull!

  11. #31
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    I've tried 2H to 4L, 4H to 4L, moving, stationary, clutch in, clutch out, in gear, in neutral, and combinations of the above, bit still it won't even start the switching sequence.
    Last edited by adri76; 2015/08/16 at 06:40 PM.

  12. #32
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    You said it DOES engage 4H? That excludes the front diff actuator from being the problem. It's starting to sound like your control unit is the problem. It's under the driver seat, under the floor mat.
    Sakkie Coetzee

    Some people say I have a "short temper"....I see it as swift and assertive reaction to Bull!

  13. #33
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    I suppose the only option remaining is to take it to the dealers so they can test the control unit. (if they can)
    I have heard that the 4x4 system is not connected to the ecu/bcu, so it would not register a fault code.

  14. #34
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    Your best bet is to take it to a dealer.....
    Sakkie Coetzee

    Some people say I have a "short temper"....I see it as swift and assertive reaction to Bull!

  15. #35
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    Ok, I think I'm closer to a solution now.
    The "backup fuse" (reverse light fuse) was blown, and it blows as soon as I replace it.
    I spoke to a mechanic at an Isuzu dealership and he thinks that the backup and neutral switches might have been swapped.
    Does anyone know if the neutral switch (the one on top of the gearbox) is NO or NC?

  16. #36
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    Default

    The neutral switch is normally closed

  17. #37
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    If the neutral switch is NC, I might have a reverse light switch in its place. I took out the reverse light switch and tested it, and it seems to be NO, just to be sure I swapped it with the neutral switch and the fuse did not blow and the reverse lights worked, but as soon as I put the bakkie in 1st, it blows the fuse, so it seems that both switches are reverse light switches. Very strange.

  18. #38
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    Talking Switch

    Quote Originally Posted by Flee View Post
    The park neutral switch circuit is normally closed.
    The reverse light switch is normally open.
    I wa supplied with a reverse switch instead of a park neutral.
    A looot of searching before I realised the mistake.
    Check that
    Quote Originally Posted by adri76 View Post
    If the neutral switch is NC, I might have a reverse light switch in its place. I took out the reverse light switch and tested it, and it seems to be NO, just to be sure I swapped it with the neutral switch and the fuse did not blow and the reverse lights worked, but as soon as I put the bakkie in 1st, it blows the fuse, so it seems that both switches are reverse light switches. Very strange.
    A little reading may have saved you some trouble

  19. #39
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    I was not sure if the switch needed to be NO or NC, and as I got the bakkie like that and I was not told that there was any work done or switches changed, it did not occur to me that it might be a reverse light switch.
    I will try to get hold of a neutral switch and hopefully it will sort out the problem.
    Thanks everyone for the input.
    I will keep you posted.

  20. #40
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    Where can one get switches like that for a decent price? My neutral switch wires are also broken off and it seems you can get it only at the dealers.

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