XJ6 & XJ12 Series I, II & III 1968-1992

Oil & Ignition warning lights on all the time

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  #1  
Old 01-31-2024, 02:52 AM
wyzawazza51's Avatar
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Default Oil & Ignition warning lights on all the time

When I went to install a Central Locking Kit. I fed the 2 blinker wires through the center console then connected the brown\blue trace wire to pin no.4 on the central lock switch. It’s a bit awkward with all the double connectors, so I pull up the alum ski slope.
For some reason I decided to check the brown\blue trace wire for power, it was dead. So I checked the windows switches they worked ok, the cigar socket had power, so I worked across checking things, ( I have not powered up your Central Locking Kit so there are no issues with it yet)
Tried to (74 XJ6) start the engine, just a click from the solenoid, checked starter relay, permanent power to brown wire & power to the white/red trace wire when trying to start engine.
Battery reads 12.7volts
Then I noticed that the oil & Ignition warning lights were still on all the time even when the key was removed from the ignition switch, (I leave with the battery neg cable removed for safety, when not working on it)
The electric Fuel pump is also ticking away with the ignition key turn on & stay ticking when the ignition key is removed.
Have checked everywhere for loose connections.
Also, had the help of a friend whose an auto electrician, He look over the electrical & is at a loss too

 
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Old 01-31-2024, 06:27 AM
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Wild guess.

I've only had two sips of coffee.

The contacts inside the ignition switch have broken and are touching each other even though the switch is in the "off" position

Cheers
DD
 
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  #3  
Old 01-31-2024, 08:57 PM
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No Doug We disconnected the switch and the ignition is still on.
 
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