Engine Coolant Temperature Receiver Gauge Malfunction [10/2017 - 12/2021]: Procedure

1. Check if meter / gauge system DTCs are output.

   Refer to DTC CHECK / CLEAR [02/2017 - ]

   Body Electrical > Combination Meter > Trouble Codes 

   Result

   Result	Proceed to
   Meter / gauge system DTCs are not output.	A
   Meter / gauge system DTCs are output.	B

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2017 - 05/2018]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [05/2018 - 09/2019]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2019 - 12/2021] 

Result: 

A 

See step  2

1. Check if SFI system DTCs are output.
   1. w/ Canister Pump Module:

      Refer to DTC CHECK / CLEAR [02/2017 - ]

   2. w/o Canister Pump Module:

      Refer to DTC CHECK / CLEAR [10/2017 - 12/2021]

   Powertrain > Engine and ECT > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output.	A
   SFI system DTCs are output. (w/o Canister Pump Module)	B
   SFI system DTCs are output. (w/ Canister Pump Module)	C

Result: 

B 

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2017 - 09/2019]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2019 - 12/2021] 

Result: 

C 

GO TO SFI SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART [02/2017 - 05/2018]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [05/2018 - 09/2019]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2019 - 08/2020]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [08/2020 - ] 

Result: 

A 

See step  3

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus:
   1. for Engine: Powertrain / Engine / Data List.
   2. for Combination Meter: Body Electrical / Combination Meter / Data List.
5. Read the Data List according to the display on the Techstream.
   1. Engine and ECT.

      Powertrain > Engine and ECT > Data List 

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

      Powertrain > Engine and ECT > Data List 

      Tester Display
      Coolant Temp

   2. Combination Meter.

      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.: 127.5°C (261.5°F)	75 to 100°C (167 to 212°F): After warming up engine	-

      Body Electrical > Combination Meter > Data List 

      Tester Display
      Coolant Temperature

      Result

      Result	Proceed to
      The Data List values of the ECUs do not match	A
      The Data List values of the ECUs match	B

      HINT: 

      • When the Data List values of the ECUs match, an internal malfunction of the ECM is suspected.
      • When the Data List values of the ECUs do not match, a signal output malfunction of the ECM or an internal malfunction of the combination meter assembly is suspected.

Result: 

A 

REPLACE ECM. Refer to  REMOVAL [10/2017 - 08/2020]  , or refer to  REMOVAL [08/2020 - 12/2021] 

Result: 

B 

REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [02/2017 - 08/2020]  , or refer to  REMOVAL [08/2020 - ]