Probable Causes
- Fuel temperature sensor failed.
- Open or shorted fuel temperature sensor circuit, or loose connector.
- ECM failed (M/T).
- PCM failed (A/T).
- The engine and the radiator have been flushed repeatedly when the engine coolant temperature was high (or the fuel temperature was high).
NOTE:
A diagnostic trouble code (DTC) could be output if the engine coolant is changed as indicated below. Because this is not a failure, the DTC must be erased. Make sure to test drive the vehicle in accordance with the drive cycle pattern in order to verify that a DTC will not be output.