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What needs to be reset if the battery is disconnected in a Volvo S40?
Wiki User
∙ 12y ago
This worked on my 2001 Volvo S40 1.9 T.
Dated 2011-05-30
As far as I know only the clock and the radio code need to be reset when the battery is disconnected.
Warning, use this procedure only if not working with any fuel related issues which I guess would mostly be when you replace the car's battery.
Connect the plus side of a small 12 volt battery via alligator clips to the small positive wire that attaches to the car battery and the negative of the small battery to a convenient place on the engine block. Positive to positive and negative to the engine block. Then remove the battery clamp screws and remove the battery. This might work even with a small 9 volt battery like the kind used in a smoke detector but I have not tried this so be aware. Replace the car battery, tighten the battery claps and remove the alligator clips and the small battery.
Alternatively buy a gizmo that plugs into the cigarette lighter / power outlet and turn the key to the 1 or 2 position (not sure) although I have never tired this.
Good luck
Brian
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Wiki User
∙ 12y ago
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