Recently went to the supermarket (all fine on way) Got back to the car to discover my n/s rear tyre flat, The tyre looked like someone had unscrewed the valve. pumped up the tyre and had the valve re screwed in (pressure fine) reset the lights by disconnecting battery but the light keep coming back on. Got a mate with a reader which shows heater plugs problem X2 he cleared faults but lights are back on, all seems very strange as lights came on at same time as flat tyre. Any help would be great thankyou