924Board.org

rajinder · Posted: Tue Dec 16, 2014 9:37 pm Post subject: Help pleace wiring issue

Hi Guys... appreciate any help .. No wiper and low beam and the light s don't rise. parking lights are ok.
All fuse and relay are ok. the funny thing is if i flash high beam and hold the light rise with high beam and wiper works . I have spent few days going through wiring diagram and cleaning the contact. and i am lost...

now for some unknown reason if i connect + 12 to G 6 the light rise and i get low beam, but no wipers.

all this is with the ignition key in on position. and lights switch in on position.

Thank you for all your help.
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1980 924 Na

rajinder · Posted: Tue Dec 16, 2014 10:00 pm Post subject:

Sorry guys typo error what It should be G7 not G6 and my fog lights don't work but i can hear the relay click when i flash.

Thanks again.
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1980 924 Na

gerben1986 · Joined: 13 Mar 2008 Posts: 232 Location: The Netherlands

How is your ignition switch?
Based on this I guess you might need a new ignition switch (part#: 111 905 865 L)
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911SC - 1980

leadfoot · Posted: Wed Dec 17, 2014 12:28 am Post subject:

Test one circuit at a time...
check for 12V at the fuse / relay / the light or motor etc...
It's easy to get confused tracing multiple problems so stay focused.
Get your Haynes manual out and check the colour or connection terminal and trace it methodically...
power for most circuits runs from battery to ignition to fuse panel to part to ground...
use a multimeter with an audio test probe to trace connections on the fuse panel and test each wire including ground wires... most problems I've had are either bad grounds, burnt terminals on the fuse panel or most commonly cracked/broken wires.
Stu
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1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

rajinder · Posted: Wed Dec 17, 2014 7:41 pm Post subject:

Thanks Stu and Gerben, I did what you guys suggested.

Checked ignition switch is ok car run and others electrical works
There is +12 black wire to E2 (from Ignition.)
E2 connection on fuse box turns out ok with internal continuity to other pin eg. rear wiper.

Stu on relay connection test at the fuse box.. any ideas on how the circuit are in the fuse box. would appreciate some ideas how the circuit are laid in the fuse box. I do have some basic knowledge but you seems like the man after reading all your postings.

can the fuse box be dismantle so i could have a look if there is any burnt / broken circuit.

Thanks

Cheers
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1980 924 Na

rajinder · Posted: Fri Dec 26, 2014 8:05 pm Post subject:

Thanks Guys, It was the ignition switch... There were no 12+ at x connection of the ignition switch. Bought a new switch, all is good..

Cheers
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1980 924 Na

alan78924 · Joined: 27 Oct 2014 Posts: 5 Location: Scotland

How did you check that you had no power at X terminal? I too have this issue and its doing my head right in!