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E04-1

Does anybody know what this code is for?
  • Posted 9 Dec 2015 08:30
  • By Peanut
  • joined 27 Aug'15 - 1 message
  • Texas, United States
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Showing items 1 - 2 of 2 results.
I have a Toyota 8FGU25 showing this E 04-1 code & runs terrible at idle. Found & watched a video showing this code - means the engine temperature sensor with 2 wires needs replaced or a wiring issue going to it. I replaced the sensor for $49.00 filled the coolant system & bled it warmed up the engine & still same problem. Next I am going to test the 2 wires going into the plug on this sensor & hoping to find the problem.
  • Posted 19 Jan 2024 16:03
  • By Darrell_Hawkins
  • joined 19 Jan'24 - 1 message
  • Indiana, United States
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04-1 Coolant temperature sensor open abnormality.
The engine may have a problem at low temperatures.
  • Posted 29 Dec 2015 05:24
  • By tomason2
  • joined 5 Apr'15 - 53 messages
  • Poland
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