Right, as some of you know, i had an alarm issue where by the alarm siren would trigger randomly, and annoy my neighbours.
In the UK we have an insurance system where if an alarm system meets 'Thatcham' class, 1, 2 or 3, you get a better rating and insurance gets cheaper. This is why the USA doesnt seem to have a siren, you have horns to sound the alarm, in the UK dealers fitted Thatcham sirens when new. So anyway, the siren was tucked away behind the ECU, barely visable even with the ECU removed completely!
So i cut the wires running to it and pulled it out, no more siren! Great....
Well no. As now the car wont start. No start and stall, just key turn - silence. All guages and lights work fine. I left it overnight and turned the key the next day and it fired right up, went for a drive, came back, turned off and on a few times and thought problem was solved. Now its dead again, no crank, no start. I thought perhaps its the immobiliser, but wouldnt it start then stall if this was the case?
I've read about shorting the starter solenoid to the battery to start it, does this bypass the immobiliser? Are there any tricks to start it, or perhaps a way to completely remove the security system? I need a way, even if its a little switch running from starter to battery, to have the jeep start as currently its dead in the water
I rang Jeep UK and all he could suggest was jiggling the gear stick while trying to start it, and trying to start it in neutral, other than that they need to hook it up to a meter, which as the jeep isnt moving, isnt an option, and with me having removed the siren box, might be a wasted trip if it throws up no codes.
The battery is a new one, everything functions as normal. Any help desperately appreciated.
1996 ZG Grand Cherokee LTD