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post #1 of 14 (permalink) Old 03-08-2020, 21:32 Thread Starter
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Fuse blowing

2000 chieftain, every time I put the vehicle into reverse the fuse pops. I had taken the rear lenses off and checked the contacts and also checked the bulbs, which are fine. I read somewhere that there is a switch (which I think might be on the gearbox? ) does anyone have any ideas on what could be causing this pls?
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post #2 of 14 (permalink) Old 03-08-2020, 22:36
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Which fuse? Or is it obvious from the question?

I have no idea about electrics!

Jean
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post #3 of 14 (permalink) Old 04-08-2020, 06:31
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I had that but it was the 'trailer' plug that had crushed it's wires.

Ray.

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post #4 of 14 (permalink) Old 04-08-2020, 09:29
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Switch on gearbox or the wiring loom has been damaged, have you had any work done recently that may have impacted the cable run ?

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post #5 of 14 (permalink) Old 05-08-2020, 13:41 Thread Starter
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I fitted a new stereo which shouldn’t affect it and I had to replace a rear light lense but nothing underneath has been touched. I have bought a bike rack and fitted that with a pin adapter but the fuse is blowing even when that’s not plugged in.
It’s a 10a fuse which is located in the the glove box, it covers reverse, indicators and once the fuse blows and the engine isn’t running, it won’t start.
I had to call out recovery and they discovered it was the fuse but I didn’t realise at that time that using reverse was the cause.

Is the Switch on the gearbox an easy replacement and can I get access to it do u know? I imagine that would be the next easiest and logical step??
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post #6 of 14 (permalink) Old 05-08-2020, 13:42 Thread Starter
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Ray, how had ur trailer plug crushed the wires?
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post #7 of 14 (permalink) Old 05-08-2020, 13:56
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Yes you have the same symptoms and fuse as my problem Mr.Fr.

I had a caravan plug mounted on a bracket beside the Tow Ball. I was towing a car with an 'A' frame and must have reversed just a little too far and the 'A' frame came to right angles with the hitch and crushed the socket against the hitch shorting the cables. Selecting reverse caused the short.

Ray.
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post #8 of 14 (permalink) Old 05-08-2020, 14:34
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To help get to the root cause Id start disconnecting recent additions from their power source one at a time.

Terry
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The people who passed off a pair of gloves as *two* items of PPE may not be entirely honest.

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In the land of the blind the one-eyed man is king.
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post #9 of 14 (permalink) Old 09-08-2020, 18:41 Thread Starter
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ok, so i followed terrys advice and disconnected both the new stereo and the hazard switch as i have renewed these and the fuse still blew. I then looked at the cable that runs from the 9 pin plug at the tow bar end as ray suggested and found that the cable has been squished a little bit , but if unused, would that still cause the fuse to blow?
The only other replacement part i have made is an entire rear light lense but i doubt this would affect anything.
I have upgraded all interior lights to LED bulbs but the 12v system is turned off, would this cause the problem? failing that, this leaves the switch on the gearbox, does anyone have any schematics or pics of where this switch is as i don’t even know what a switch looks like?
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post #10 of 14 (permalink) Old 09-08-2020, 19:38
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If a fiat gearbox, switch sits on unit attached to the top of the gearbox, item four in pic.

Worth checking the Fiat Forum, it’s really good.

Terry
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The people who passed off a pair of gloves as *two* items of PPE may not be entirely honest.

'Get Brexit Done' anagram - BEING EXTORTED

I'm a Euro Unionist, Testiculi ad Brexitam

Brexit: the incapable in pursuit of the unobtainable to satisfy the delusional. (Edwin Hayward)

In the land of the blind the one-eyed man is king.
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