Does ODB-II work when the car is off? (will the battery drain by leaving connected?)
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It probably will drain the battery.
But why leave it connected?
Your car will communicate with the OBD-reader only when the ignition is turned on.
So if you turn the ignition off the connection will get cut anyway and the OBD reader will still draw current.
(At least that is the way my OBD reader works.)
David
But why leave it connected?
Your car will communicate with the OBD-reader only when the ignition is turned on.
So if you turn the ignition off the connection will get cut anyway and the OBD reader will still draw current.
(At least that is the way my OBD reader works.)
David
Last edited by DavidN; 02-24-2011 at 10:04 AM.
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#6
For those who want to learn from my stupidity, the short answer is yes.
Bluetooth continues to transmit and you can indeed connect to it when it is merely plugged in even without the keys in the ignition - you cannot communicate with the ECU without turning the key to the ACC position, but you most certainly can drain your battery by leaving the device connected overnight
Bluetooth continues to transmit and you can indeed connect to it when it is merely plugged in even without the keys in the ignition - you cannot communicate with the ECU without turning the key to the ACC position, but you most certainly can drain your battery by leaving the device connected overnight
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