1994 US XJ6 / XJ40: disabling the alarm module or repairing and programming it

Also…the ignition on relay, if not up to snuff, can cause a failure to ignite. That was the issue with Jag.Man’s 1994. The contacts were oxidized or burned such that the relay, while conducting adequate voltage, did not conduct adequate current. Quite a lengthy thread (193 posts) but here’s the conclusion with a picture of the bad relay:

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