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Pharaoh XJ
November 5th, 2006, 07:01
Hi, I have a 94 XJ HO AW4 i Wonder if my car supports OBD ll they say that it fits 96 models and some 94 . is a 94 XJ one of them?
5-90
November 5th, 2006, 08:05
OBD-II is 1996 and up - your 1994 should be OBD-I.

5-90
caspergotaz28
November 5th, 2006, 12:48
To check codes there is a on-off sequence with the key. It's real easy to do.
caspergotaz28
November 5th, 2006, 14:22
From this page....
http://jeephorizons.com/phpbb/viewtopic.php?t=2719

The "Key Tricks"
Older (OBDI) models - Start with the ignition off. Within five seconds, switch the key on, off, on, off, on. ("On" is NOT "Start" and "Off" is NOT "Lock"). The "check engine" light will flash. Count the flashes. Each code is a two digit code, so a (for example) 23 would be FLASH FLASH (pause) FLASH FLASH FLASH (long pause). It will never flash more than 9 times, so watch for those pauses!