Ian
Notorious member
@CZ93X62, Disconnecting battery power also resets all of the learned adaptive strategies and mode 6 non-continuous monitors in your engine and transmission computers, which is far more of a concern than clock or radio settings.
Next time, take a 9 Volt battery and hook it in parallel with the 12 Volt battery via small alligator clip jumpers before you disconnect power. You can find a main power bus stud in the underhood power distribution block or a "jump start" stud and hook the 9V up there, or if there is a power supply plug inside the vehicle which remains powered when the key is out, you can buy a doohickey which plugs in directly to feed power backwards into the main system and provide keep-alive memory to all the computers while you do your terminal work. This is SOP in the industry to we don't piss off your wife, either. Just make certain not to open a door after the main battery is disconnected, and unplug your underhood lamp to reduce draw on the 9V.
Next time, take a 9 Volt battery and hook it in parallel with the 12 Volt battery via small alligator clip jumpers before you disconnect power. You can find a main power bus stud in the underhood power distribution block or a "jump start" stud and hook the 9V up there, or if there is a power supply plug inside the vehicle which remains powered when the key is out, you can buy a doohickey which plugs in directly to feed power backwards into the main system and provide keep-alive memory to all the computers while you do your terminal work. This is SOP in the industry to we don't piss off your wife, either. Just make certain not to open a door after the main battery is disconnected, and unplug your underhood lamp to reduce draw on the 9V.
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