Engine Coolant Temperature Receiver Gauge Malfunction [10/2024 - ]: Procedure

1. Check if CAN communication system DTCs are output.

   except Gasoline Model: Refer to DIAGNOSIS SYSTEM [10/2024 - ]

   for Gasoline Model: Refer to DIAGNOSIS SYSTEM [10/2024 - ]

   Result

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

Result: 

B 

GO TO CAN COMMUNICATION SYSTEM 

except Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2023 - ]

for Gasoline Model: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2023 - ]

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 A25A-FXS: Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2024 - ]

for T24A-FTS (for 1Motor-HEV Model): Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2024 - ]

for T24A-FTS (for Gasoline Model): Refer to DIAGNOSTIC TROUBLE CODE CHART [10/2024 - ]

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 T24A-FTS (for 1Motor-HEV Model):

   Powertrain > Engine > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Coolant Temperature Sensor1	Engine coolant temperature (for outlet side)	Min.: -40°C (-40°F), Max.: 215°C (419°F)	75 to 115°C (167 to 239°F): After fully warming up	Coolant Temperature Sensor1 indicates the output value of the engine coolant temperature sensor (for outlet side). HINT:  After a long soak, the Coolant Temperature Sensor1, the Coolant Temperature Sensor2, the Coolant Temperature Sensor3, the Intake Air Temperature B1S1 and Ambient Temperature will be approximately equal. If the value is -40°C (-40°F), or 140°C (284°F), the sensor circuit is open or shorted.

   Powertrain > Engine > Data List 

   Tester Display
   Coolant Temperature Sensor1

   for T24A-FTS (for Gasoline Model):

   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 115°C (167 to 239°F): After warming up	This is the engine coolant temperature. HINT:  After warming up the engine, the engine coolant temperature will be 75 to 115°C (167 to 239°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 A25A-FXS, A25B-FXS:

   Powertrain > Engine 

   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

   Result

   Proceed to
   OK
   NG

Result: 

OK 

GO TO SFI SYSTEM 

for A25A-FXS: Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ]

for T24A-FTS (for 1Motor-HEV Model): Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ]

for T24A-FTS (for Gasoline Model): Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2022 - ]

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [10/2024 - ]