Hey all, picked up a 97 XJ and have been doing a heap of research on the SKIM /Immobiliser “feature”.
So my 97 requires the key fob “unlock” button to be pressed to disable the immobiliser.
Whilst I have a fob that works, it’s a bit dicky and I suspect it’s going to die at some point (probably whilst on a trail).
I’d like to know if anyone has either;
Re-flashed their ECU , disconnected the SKIM module and re-installed it
Bought a Non-SKIM ECU (probably from the US) and swapped it out after unplugging their SKIM module?
I’ve also pulled apart the steering column surround to identify the unit (as I have read it’s around the ignition barrel). Can’t seem to see anything the looks like those I have seen in my research - Anyone know what I should be looking for and where?
Apologies for the long post, struggling to find some really clear information/solution.
SKIS - Sentry Key Immobiliser System - uses chipped keys which are sensed by the SKIM - Sentry Key Immobiliser Module - which has a ring around the ignition barrel.
If you have a 97 with push button fobs you do not have SKIS/SKIM.
I have two button fobs for my 97 TJ in the UK. The UK 2 button fob immobiliser module is behind the cluster on early TJs and may be the same location for Oz TJ and XJ modules.
The UK immobiliser in early TJ/XJ Mk2 models was made by May and Schofield. I don't know if it contains any relays as it actually prevents cranking in my TJ never mind running. A US non security enabled PCM from the USA should work but might need the immobiliser removing and may also require starter circuit wires splicing if they are indeed interrupted by the immobiliser.
Hopefully somebody who knows more about the system fitted to Oz Jeeps of that era will be able to offer more information.
I was told by others on here that the unit for the fob is located in the overhead console.
The first thing for you to do is put a new battery in the fob & make sure you always have a good spare battery for the fob.
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97 XJ Cherokee (4.0 Petrol) - SKIM unit location
