how can a security failure be removed. 2005 jaguar x won't crank.


Asked by Mar 21, 2015 at 03:20 PM about the 2005 Jaguar X-TYPE 3.0L

Question type: Maintenance & Repair

I replaced ecu and tcm unit, now it shows security failure.

2 Answers


You ever figure this out? In the same exact situation

1 of 1 people found this helpful.

Me too. Anyone out there? I just bought this car from an individual a week ago! I have asked several dealerships in several states. Can anyone answer this question? My "Security Failure" light illuminated one day and now every morning I get the same thing. Now it takes 20 or more turns of the key just to get it started in the morning. The rest of the day it starts with no problems. Bought the car in Phoenix the end of summer. Now it's in cold country (25 degrees F this morning) and continually having this error message. HELP!!

3 of 3 people found this helpful.

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