i am a tech for the crown and nissan dealer in alberta and have just tracked down the primary and secondary code but they still are not working for me. Do you have to hold down hour and performance upon start-up, then proceed?

some rental companies unplug the flex strip to the buttons to prevent tampering. also if no turtle icon is present on the dash the unit is at full speed. you can try PC lock. if you can convince me that you are a tech and are authorized to make such changes i will help you. ie do you have the primary password? i would not like to be a part of you getting hurt or fired. jobs iz hard to find right now.