DTC P0116: Engine Coolant Temperature Circuit Range / Performance Problem [08/2015 - 08/2017]: Procedure
WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0116)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON.
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.
- Read the DTC.RESULT
Result Proceed to P0116 is output A P0116 and other DTCs are output B
Result:
B
GO TO DTC CHART
Refer to
DIAGNOSTIC TROUBLE CODE CHART [08/2015 - 10/2016]
DIAGNOSTIC TROUBLE CODE CHART [10/2016 - 08/2017]
Result:
A
See step 2
- INSPECT THERMOSTAT
- Remove the thermostat (Refer to REMOVAL [08/2015 - 08/2018] ).
- Measure the valve opening temperature of the thermostat.
Standard opening temperature
80 to 84°C (176 to 183°F)
HINT:
In addition to the above check, confirm that the valve is completely closed when the temperature is below the standard.
- Reinstall the thermostat (Refer to INSTALLATION [08/2015 - 08/2018]
).
HINT:
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor (Refer to INITIALIZATION [08/2015 - 08/2017] ).
Result:
OK
REPLACE ENGINE COOLANT TEMPERATURE SENSOR
(Refer to REMOVAL [08/2015 - 08/2018] )
Result:
NG
REPLACE THERMOSTAT
(Refer to REMOVAL [08/2015 - 08/2018] )