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Old 18th June 2019, 10:44   #1
Dennisperkins
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Default Rover 75 2.5 auto Gear Box Fuse

can anyone advise me please, the 15 amp fuse for the auto gearbox on my Rover 75 Connoisseur SE Highline keeps blowing and i cant see why, strange thing is that the internal courtesy lights keep fluttering as well.
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Old 19th June 2019, 02:44   #2
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Bump. This sounds familiar. I don't have the answer, but I'm sure someone does.

Good luck,
Glenn
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Old 19th June 2019, 08:51   #3
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can anyone advise me please, the 15 amp fuse for the auto gearbox on my Rover 75 Connoisseur SE Highline keeps blowing ...
Which fuse number please Dennis, and are you looking in the underbonnet or passenger footwell fusebox?

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Old 19th June 2019, 10:11   #4
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not quite sure what number it is but in the fuse box in the engine compartment its the 15 amp fuse 2nd down on the right hand side which keeps blowing (RH drive) according my handbook its fuse No 4 but it its written as "Automatic transmission, air conditioning, cooling fan, cruise control (diesel models). also when the fuse blows, the indicator lights by the selector lever and the indicator on the on the instrument panel do not work.
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Old 19th June 2019, 11:36   #5
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Default F4, engine compartment fusebox

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Originally Posted by Dennisperkins View Post
... when the fuse blows, the indicator lights by the selector lever ... do not work.
Yes, F4 feeds the automatic transmission selector switch as well as:
  • Radiator fan control box electronics
  • Air conditioning compressor clutch relay coil
  • Reversing light switch
  • A header feeding other circuits

The fuse is blowing because there's a short circuit somewhere. A prime suspect is the feed to the radiator fan control box where it passes either under the fusebox or close to the inner nearside wing where the wire can be severed by a sharp edge. This fault only seems to affect diesels so I suggest that you look there first. It's initially a yellow wire with blue tracer.

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Old 21st June 2019, 14:55   #6
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Hi Simon I had a look and from what i could see without taking things apart everything looked ok id be grateful if you had any other suggestions. thanks
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Old 21st June 2019, 16:51   #7
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... from what i could see without taking things apart everything looked ok ...
Well it obviously isn't because your fuse is blowing. I'm afraid that you'll have to remove things to trace the route of the wire I mentioned from the fusebox to the connectors behind the fan control box.

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Old 14th August 2020, 14:04   #8
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Default Solved i think

Well i think i had one of those light bulb moments, i noticed that the problem was getting worse and that it happened when i selected a gear (auto) i then had a look on the internet and found that although there was a selector mechanism that was mechanical it was linked to the gearbox electronically, i asked my garage to have a look, they told me that they checked the wiring and although it was being crushed when gears were selected the casing to the wiring did not seem damaged anyway they moved the wiring and since then the problem has gone. they didn't charge me because they did not know if they fixed it but when the car goes in for some other work i'll ask them to do a more permanent protection job.
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Old 14th August 2020, 16:06   #9
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... I asked my garage to have a look, they told me that they checked the wiring and although it was being crushed when gears were selected ...
Was I on the right lines then Dennis?

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