Check mileage on XJ without a key

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Dec 24, 2014 | 04:31 PM

#16

black label

Seasoned Member

Joined: Nov 2013

Posts: 347

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From: Boston

Year: 1993

Model: Cherokee

Engine: 4.0 Litre

Quote:

Originally Posted by salad

IIRC the Jeep SKIM doesn't lock out. The PCM is programmed to talk to the SKIM, and the SKIM is programmed for the signature of only a couple keys. SKIM uses a near-field RF to read the key and passes an "ok" message to the PCM. Without an authenticated message the SKIN-enabled PCMs shut down the go parts. So yes a chip key is not required just to boot the cluster.

Going slightly off topic but Hondas have a bypass called the "brake code" you need very high clearance on the honda corporate site to get these codes. Even then, very few dealer employees know they exist.

Essentially you have to turn the ignition on an tap the brakes a certain number of times the turn the ignition off, turn it on again and hit the brakes a certain number of times then turn it off again. This has to be done about 8 times but once done correctly, you can start the car without a coded chip.