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Volvo V50 battery disconnect-reconnect electrical issues

Help, Advice, Owners' Discussion and DIY Tutorials devoted to the second generation C70, S40 and V50 Volvos -- awkwardly model year 2004 ½ onwards -- plus where to go for advice and discussion on Volvo's sporty C30 Coupe powered by Volvo's ubiquitous inline 5-cylinder power plant.
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Year and Model: 2011 V50
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Volvo V50 battery disconnect-reconnect electrical issues

Post by mathy221984 »

Hey everyone,

I disconnected the negative cable from my battery today and after I reconnected it the instrument cluster does nothing. None of the electrical components are functioning except the check engine light and oddly enough the windshield wiper are stuck on.

I cant even shut the wipers off or lower the speed of them, they are just on when the key is in number 2 position. I have disconnected the battery for 30 minutes and reconnected to try to see if it fixes it but it does not.

The car will start and run but still nothing on the dash works.

Can anyone help?
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Re: Volvo V50 battery disconnect-reconnect electrical issues

Post by MadeInJapan »

These cars are meant to have the battery cables reconnected with the key in position II. Take the battery cables off again...hold them together or tape them together for 15-20 mins (to discharge anything that is left in the electrical system)....then put your key in the ignition (battery cables apart now- no longer taped together) and turn your key to position II. Next, put the negative cable on the battery and finally the positive cable. See if this restores the rest of the dash.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo
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