KennyW

Did you ever discover what the problem was? I have this exact same issue at the moment, been through two brand new sensors

Well... Got in to car to take car to an auto spark and normal service has resumed. I suspect moisture/condensation in the fuse box is the likely cause as I had removed kick panels and dried the area out. MPG gauge is miss reading, but that's an improvement over not working at all.

Yup, bout two months ago. Was leaning towards that, but wanted to check out if there was other known causes. Thx, will report back.

Today my 2001 IS200 SE threw an electrical fit and I wondered if anyone else has experienced this. Symptoms are as follows: Alarm wont deactivate from Fob, repeatedly initiating and resetting on opening door, boot, bonnet or engine start (engine starts and runs as normal). Hazards don't flash when alarm sounds. Fuel gauge operates intermittently while low fuel light flashes (tank is 3/4 full). Battery discharge warning light comes on intermittently (New Battery fitted). Immediate MPG & Engine Temp gauge inactive. Outside temp gauge shows "E". This all started today at the same time. Car is booked in for a diagnostics tomo morning, but in meantime any ideas?