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Author Topic: My Fuse #3 blows as soon as the ignition is turned on  (Read 3144 times)

bossanov

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My Fuse #3 blows as soon as the ignition is turned on
« on: September 18, 2012, 01:34:06 »
Has anyone seen or fixed this problem?

Gordon
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Larry & Norma

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Re: My Fuse #3 blows as soon as the ignition is turned on
« Reply #1 on: September 18, 2012, 08:36:55 »
If I am reading the Haynes manual correctly then fuse 3 is for accessories etc, so you will have to
trace the wire from the fuse box. If you remove fuse 3 the car should operate ok.
(Unless you have an Auto, see Peter's reply)
« Last Edit: September 18, 2012, 11:47:09 by Gnuface »
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Larry Hall (Gnuface)
2023 Ioniq6
2005 C230
1970 280SL

Peter van Es

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Re: My Fuse #3 blows as soon as the ignition is turned on
« Reply #2 on: September 18, 2012, 09:33:00 »
It typically means you have a short somewhere. If it develops suddenly, often an insulator has failed (due to heat, old age or lack of adhesive). Have a look here: http://www.sl113.org/wiki/Electrical/Troubleshooting

Fuse 3 is the control circuit for the Automatic Gearbox (see http://www.sl113.org/wiki/Electrical/Fuses) and the diagram here: http://www.sl113.org/wiki/Automatic/Start . Look for a short around the "double acting solenoid" and the +ve feed to the idling switch on the throttle body.
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1970 280SL. System Admin of the site. Please do not mail or PM me questions on Pagoda's... I'm not likely to know the answer.  Please post on the forum instead!
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