UK Car Repair Questions? Ask a Mechanic for Answers ASAP
if the truck has just died and has no comms, no lights on the dash and it won't crank then I'd 1st check the main battery connections and then the high power fuses in the under hood fuse box and if there's any fuse connections on the battery then check these too
also follow the main battery connections back to the chassis and ensure its tight and corrosion free
also check the main alternator connections too
also measure across the battery terminals as it should be at least 12.5V , any less than this and the battery should be replaced
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