you need to check that a feed is going to heater plugs when warning light is on [heater plugs should still be live for a short while when light goes out ] if not ,then relay/timer could be faulty, fuse may have blown or wiring at fault.
k
January 2008
had checks done on these yesterday everything fine
joanne ridgeway
January 2008
go to a garage have battery voltage checked and alternator output checked
wirecutterman
January 2008
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