I have the car pass and other codes, when I coded the keys in a few weeks ago everything worked ok, but the customer advised me on Sunday that the car would not start, later I found that for some reason one of the keys lost communication with the immobiliser and even though I entered the code(s) as requested by TECH II, TECH II came back advising that I needed TIS authorisation to continue.
This never happend a few weeks ago so I am assuming that based on the fault codes read with TECH II and reading through the checking data from TIS, this TIS leading towards a faulty immobiliser I am leaning towards this being the reason why TECH II is saying I need TIS authorisation to continue?
I am not completing a different procedure now than I was a few weeks ago, so something along the lines of the immobiliser must have failed?
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