duc900sss Posted November 2, 2015 Share Posted November 2, 2015 Hi guys i really need help with my 97 disco v8 .my key broke and i desperately need a wiring diagram of any sort to install a push button start as i am way out bush of perth WA , and only hav some switches. theres a yellow ,a white ,and white red wire to fuse box and brown and green white wire to engine bay.any help ASAP would be great. thanks in advance to all. Quote Link to comment Share on other sites More sharing options...
dave88sw Posted November 3, 2015 Share Posted November 3, 2015 If memory serves me right: Brown is perm live white is ign live but not while cranking yellow is ign live and live while cranking green/white is accessory live white/red is live feed to starter solenoid. With all that in mind and considering all you want is a temporary repair with some standard switches, i would connect the white, yellow and green/white together onto one side of a switch, and the brown on the other side. Then with a momentary switch, join the brown and white/red. Quote Link to comment Share on other sites More sharing options...
sierrafery Posted November 3, 2015 Share Posted November 3, 2015 download this http://www.landy.ee/manuals/electricity/Disco_Elec.Troubleshooting%20Manual%20-%20LRL0077ENG%20(1997).pdf it has diagrams and everything Quote Link to comment Share on other sites More sharing options...
Boydie Posted November 3, 2015 Share Posted November 3, 2015 Yes as the above comments to replace the standard ignition key lock you will need two switches. A toggle On/Off switch for the ignition to run the electric fuel pump, ignition coils etc. and those electric circuits that are activated by the key position just before cranking and A push button to supply power to the starter solenoid. (The supply for this comes off the toggle switch) You cannot do it with a push button switch alone. Quote Link to comment Share on other sites More sharing options...
Boydie Posted November 3, 2015 Share Posted November 3, 2015 I've just spent 20 minutes and getting a headache from the LR wiring diagrams because you need to look at about 6 chapters just to understand how the key ignition switch operates but as Dave said:- Brown (permanent live) into the input connection of the On/Off toggle switch White : Green/White trace : Yellow Connect these three wires to output connection of the Toggle switch. Bridge the Yellow from the toggle switch to the input connection of the Push Button. Connect the Red/White trace wire to the output connection of the Push Button. To start, flick the toggle switch to ON, press the Push Button. Quote Link to comment Share on other sites More sharing options...
Boydie Posted November 3, 2015 Share Posted November 3, 2015 Oops, of course, to stop, flick the toggle to OFF Quote Link to comment Share on other sites More sharing options...
sierrafery Posted November 3, 2015 Share Posted November 3, 2015 Or more simple you can release the electric switch from the barrel addapt it somehow to the binnacle and turn it with a short flat screwdriver to crank then back one step to keep the engine running and back to 0 to stop if you see what i mean... you can improvise a kinda plastic ''handle'' to attach to it then you can turn it by hand through all it's positions as you wish Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted November 3, 2015 Share Posted November 3, 2015 White/red stripe is starter, red/white is (possibly) dashboard illumination (it is on a Defender anyway...). Quote Link to comment Share on other sites More sharing options...
qwakers Posted November 3, 2015 Share Posted November 3, 2015 Ff the ign wiring colour codes are the same on disco1 s and defenders. Infact all of the engine wiring colours are the same across the def and disco... Made my life a bit easier in the past :-) Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted November 3, 2015 Share Posted November 3, 2015 Thought they probably would be, just that Boydie wrote "Connect the Red/White trace wire to the output connection of the Push Button" which I think he probably meant the starter wire White/Red rather than the dashboard lights Quote Link to comment Share on other sites More sharing options...
Boydie Posted November 3, 2015 Share Posted November 3, 2015 You're right, my bad, sorry - White /Red -- mind you those LR electrical wiring diagrams would confuse Einstein which is another reason why I tore all the standard wiring harnesses out and totally rewired my Disco without the myriad of wires for factory fitted options that my car didn't have and that I would never want anyway - as well as doing away with the Spider, MFU and other electronic devices that I could never hope to repair in the bush should they fail at an inconvenient time - such as crossing a deep creek ! Quote Link to comment Share on other sites More sharing options...
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