Hi forum. Was trying to measure voltage of my battery using the accessory cable that comes out by the rear brake master cylinder. This is 2 conductor trailer plug. Not voltage so I went sniffing around and noticed that ring terminal for negative was not connected. See attached photo showing ring at bottom. In case you too don't have power at accessory plug check your negative ring terminal at power distribution module on right side of battery. Is this something that should have been done at factory or at dealership ?
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