Engine Coolant Temperature Receiver Gauge Malfunction [04/2018 - ]: Procedure

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CHECK CAN COMMUNICATION SYSTEM

Check if CAN communication system DTCs are output.

Refer to DIAGNOSIS SYSTEM [04/2018 - 08/2020] , or refer to DIAGNOSIS SYSTEM [08/2020 - 08/2021] , or refer to DIAGNOSIS SYSTEM [08/2021 - ]

Result

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

Result:

GO TO CAN COMMUNICATION SYSTEM. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 - ]

Result:

See step 2

CHECK FOR DTC (SFI SYSTEM)

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:

GO TO SFI SYSTEM. Refer to DIAGNOSTIC TROUBLE CODE CHART [04/2018 - 08/2019] , or refer to DIAGNOSTIC TROUBLE CODE CHART [08/2019 - 08/2020] , or refer to DIAGNOSTIC TROUBLE CODE CHART [08/2020 - 08/2021] , or refer to DIAGNOSTIC TROUBLE CODE CHART [08/2021 - ]

Result:

See step 3

PERFORM ACTIVE TEST USING TECHSTREAM

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Water Temperature Meter Operation (50C, 122F)
*b	Water Temperature Meter Operation (60C, 140F)
*c	Water Temperature Meter Operation (70C, 158F)
*d	Water Temperature Meter Operation (80C, 176F)
*e	Water Temperature Meter Operation (Middle)
*f	Water Temperature Meter Operation (110C, 230F)
*g	Water Temperature Meter Operation (120C, 248F)
*h	Water Temperature Meter Operation (127C, 260F)

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Combination Meter / Active Test.

Perform the Active Test according to the display on the Techstream.