Assuming you want to clear/reset the check engine light, if you have successfully made repairs to correct what was the cause of the check engine light to go on the light will clear itself after a few drive cycles.
yes
do you have to reset computer after changing battery in 2003 745li
You do not have to reset the computer.
To reset the computer on your 2003 Cadillac CTS after changing the spark plugs, you can disconnect the negative battery terminal for about 10-15 minutes. This will clear the engine's diagnostic trouble codes and reset the computer's adaptive memory. After reconnecting the battery, start the engine and allow it to idle for a few minutes to let the computer relearn the engine parameters. Additionally, you may want to take the car for a short drive to help it recalibrate.
Take it to the dealer
There is nothing concerning the computer that needs to be reset.
Its in the key switch
no you dont have to reset the computer after changing the fuel pump
No, you do not have to reset the computer. It will take care of itself.
Not necessary. The computer will reset itself after a few driving cycles.
You do not have to reset the computer any more than you reset your computer in your home after a power outage. It will take care of itself.
Yes, you do... But if you do within 1-2 minutes you might not reset the computer.