Dear ken, here I am again. I still have this problem. Please, answer me on these two questions:
1. I have new (re-manufactured) ECM, programmed with my VIN, but key relearn procedure can not be done. What can be reason of this? When I install new ECM and begin key relearn procedure, when I turn the ignition to the "on" position, The security light must illuminate steady or flash at least 10 minutes, but it turns off after 5 seconds and comes again after 1 minute (with message Service Theft system) and turns no more off. This must be first step to key relearn and it can not be done. What can be reason of this? I am sure, new ECM is absolutely okay.
2. When motor is running at least 30 minutes, car starts normally with the key - even if you try 20 times. Only after some hours staying off, problem comes again. So, can you maybe tell me, what happened? That is because I still think, it is not ECM-s problem.
Wednesday, July 10th, 2019 AT 11:16 PM