Thanks again for your advice. A few posts back I advised that the car run with one key in and the remaining key had an immobilizer fault issue?
I fitted a second hand transponder to a new key and the remaining key transponder was put into another new key, thus I had two new keys one with the original transponder and one with a replacement transponder. One original transponder was damaged in the old key.
I used TECH II and followed the on screen instructions, both keys were satisfactorily programmed to the immobilizer/ECM. Now whether TECH II cloned a key from one to the other at this point I did not know, but both keys worked ok.
This week having been advised that the car did not start using one of the keys, but started with the second key, the fault codes lead me to the immobilizer being faulty, the checking procedure advises to check for a voltage to the immobilizer and if that is ok and there is still a problem, then the immobilizer is probably at fault?
I asked myself, if the immobilizer is faulty why would one key start the car, maybe in limp mode, but the remaining key would not?
Until today I could not answer that question.
I new previously TECH II required TIS authorization, so today I proceeded to remove the immobilizer and record the number to purchase another unit, however I was still doubtful that the immobilizer was actually faulty?
The customer was not telling me all the facts, but I only found this out at the last moment.
I downloaded the SPS software to communicate with the cars immobilizer and ECM today, refitted the immobilizer in the column, installed two new blank transponders, one in each key, and only then did I find that one key had a transponder missing!!
I programmed the two keys using TECH II and both keys have been successfully programmed again, both keys start the car and it runs ok.
I asked about the missing transponder, the owner said he knew nothing about it being missing, then he advises that his brother used the car to go shopping, and his son also used the car and this is the point when I was contacted and told one key would not start the car.
Looking in the drivers foot well today after finding a transponder missing, I found the missing transponder, it is now obvious to me that the key was accidentally pulled apart and the transponder chip has fallen out into the foot well, and the driver was not aware that this had occurred!!
Was there ever a fault?
Will the transponders roll over in 3 to 8 weeks?
It seems a lot of stress for me for nothing the fault was probably never there in the first place!!
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