Engine Coolant Temperature Receiver Gauge Malfunction [11/2022 - ]: Procedure

1. Check if CAN communication system DTCs are output.

   for Gasoline Model: Refer to DIAGNOSIS SYSTEM [11/2022 - 03/2023] , or refer to DIAGNOSIS SYSTEM [03/2023 - 08/2023] , or refer to DIAGNOSIS SYSTEM [08/2023 - 09/2024] , or refer to DIAGNOSIS SYSTEM [09/2024 - ]

   for HV Model: Refer to DIAGNOSIS SYSTEM [11/2022 - ]

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2022 - 08/2023] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2023 - 09/2024] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2024 - ]

for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2022 - ]

Result: 

A 

See step  2

1. Check if SFI system DTCs are output.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

B 

GO TO SFI SYSTEM 

for HV Model: Refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - 09/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2024 - ]

for Gasoline Model: Refer to DIAGNOSTIC TROUBLE CODE CHART [11/2022 - 03/2023] , or refer to DIAGNOSTIC TROUBLE CODE CHART [03/2023 - 09/2024] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2024 - ]

Result: 

A 

See step  3

1. Using the GTS, read the Data List.

   Body Electrical > Combination Meter > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Coolant Temperature	Engine coolant temperature	Min.: 0°C (0°F), Max.: 127.0°C (260.6°F)	75 to 100°C (167 to 212°F): After warming up the engine	-

   Body Electrical > Combination Meter > Data List 

   Tester Display
   Coolant Temperature

   for M20A-FKS:

   Powertrain > Engine > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Coolant Temperature	Engine coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	This is the engine coolant temperature. HINT:  After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be approximately equal. If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted. Check if the engine overheats if the value indicated is higher than 135°C (275°F).

   Powertrain > Engine > Data List 

   Tester Display
   Coolant Temperature

   for 2ZR-FXE:

   Powertrain > Engine > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Coolant Temperature	Engine coolant temperature	Min.: -40°C (-40°F), Max.: 140°C (284°F)	75 to 100°C (167 to 212°F): After warming up	This is the engine coolant temperature. HINT:  After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F). After a long soak, the engine coolant temperature, intake air temperature, ambient air temperature and radiator coolant temperature will be approximately equal. If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted. Check if the engine overheats if the value indicated is higher than 135°C (275°F).

   Powertrain > Engine > Data List 

   Tester Display
   Coolant Temperature

   Result

   Proceed to
   OK
   NG

Result: 

OK 

GO TO SFI SYSTEM 

for HV Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [01/2019 - ]

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2018 - ]

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY 

Refer to REMOVAL [11/2022 - 09/2024] , or refer to REMOVAL [09/2024 - ]