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Battery Control fuse keeps blowing - any ideas?

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    Battery Control fuse keeps blowing - any ideas?

    Went for a spin today - first time in a couple of months - noticed the clock wasn't working but didn't give it much thought. Got home to find Battery Control fuse had blown - fitted another and this blew straight away. Any ideas where to start looking?

    #2
    Battery Control fuse covers the following items - see picture. I'd start with the cigarette lighter then each of the other circuits in turn.
    Attached Files
    Dave
    1974 Mk2, ZF Auto, 3.45 Diff, Datsun Driveshafts. Stag owner/maintainer since 1989.

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      #3
      Have they missed of the boot lamp in that list?

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        #4
        Yes.....
        Dave
        1974 Mk2, ZF Auto, 3.45 Diff, Datsun Driveshafts. Stag owner/maintainer since 1989.

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          #5
          I had the door cards off the car last weekend - if I'd miss wired the puddle lamps would this maybe have caused the problem? Don't really want to take the cards off again if I can help it!!

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            #6
            Originally posted by KansasCityMilkman View Post
            I had the door cards off the car last weekend - if I'd miss wired the puddle lamps would this maybe have caused the problem? Don't really want to take the cards off again if I can help it!!

            If you disconnected the bullet connectors to them, and when you put them back you didn't push them right home, its possible you have a dead short (touching the door framework) I have seen this before

            Ian
            Last edited by milothedog; 11 March 2014, 22:17.
            Wise men ignore the advice of fools, but fools ignore the advice of wise men sigpic

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              #7
              Originally posted by KansasCityMilkman View Post
              I had the door cards off the car last weekend - if I'd miss wired the puddle lamps would this maybe have caused the problem? Don't really want to take the cards off again if I can help it!!
              I would get hold of a good multi meter first up they are worth the few quid they cost and one will save you a load of time and hassle. (You might just discover the fault is not behind the door card!)
              Then remove the fuse that keeps blowing and chase the continuity to earth with the metre. The parcel shelf gets in the way in the passenger footwell but it is worth the hassle and saves you testing the issue with a limited supply of fuses.

              We discovered Crossy's car had a dodgy wire feeding the door switch and was blowing the same fuse as yours. We struggled to find the actual fault but traced it to the wire from the console switch to the door switch. Removed the wire problem gone away now we just have to replace the dodgy wire

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                #8
                Or if you have/can rig a small buzzer or lamp across the fuse contacts, if the fault is present the lamp or buzzer will be on. If it is, disconnect each item in turn controlled by that fuse and if it goes off you have found which component/circuit is causing the short.

                Ian.
                Wise men ignore the advice of fools, but fools ignore the advice of wise men sigpic

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                  #9
                  Originally posted by milothedog View Post
                  Or if you have/can rig a small buzzer or lamp across the fuse contacts, if the fault is present the lamp or buzzer will be on. If it is, disconnect each item in turn controlled by that fuse and if it goes off you have found which component/circuit is causing the short.

                  Ian.
                  I,ve got a meter if you need one Stu, and a very good booklet on how to use it that came from Ian above ( shh! think he what a custard colour car)
                  "The UK,s 2nd Most Easterly Stag" Quad Exhaust- ZF 4 Speed BOX

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                    #10
                    Originally posted by MandM View Post
                    I,ve got a meter if you need one Stu, and a very good booklet on how to use it that came from Ian above ( shh! think he what a custard colour car)

                    Make up your mind Martin, is it Custard or Sunrise

                    Ian
                    Wise men ignore the advice of fools, but fools ignore the advice of wise men sigpic

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                      #11
                      Thanks guys. I have a multi meter. Looks like a job for the weekend!

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                        #12
                        [QUOTE=milothedog;268488]Make up your mind Martin, is it Custard or Sunrise

                        Ian[/QUOTE both make you smile
                        "The UK,s 2nd Most Easterly Stag" Quad Exhaust- ZF 4 Speed BOX

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