DTC P111C-62: Control Module Internal Temperature Sensor/Intake Air Temperature Sensor Signal Compare Failure [08/2021 - ]: Procedure
WARNING: This page is about a different car, the 2024 Lexus ES 250, 2023 Lexus ES 250, 2022 Lexus ES 250, and 2021 Lexus ES 250. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO P111C-62)
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Enter the following menus: Powertrain / Engine / Trouble Codes.
- Read the DTCs.
Powertrain > Engine > Trouble Codes
Result
Result Proceed to DTC P111C-62 is output A DTC P111C-62 and other DTCs are output B HINT:
If any DTCs other than P111C-62 are output, troubleshoot those DTCs first.
- Record the Freeze Frame Data.
Result:
B
GO TO DTC CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [08/2021 - 09/2022] , or refer to DIAGNOSTIC TROUBLE CODE CHART [09/2022 - ]
Result:
A
See step 2
- CHECK FREEZE FRAME DATA (INTAKE AIR TEMPERATURE AND AMBIENT TEMPERATURE)
- Connect the Techstream to the DLC3.
- Turn the engine switch on (IG).
- Turn the Techstream on.
- Using the Techstream, read the values displayed in the Freeze Frame Data recorded in step 1.
Powertrain > Engine
Tester Display Intake Air Temperature Ambient Temperature - Read the value displayed on the Techstream.
Standard
Difference between the Intake Air Temperature and the Ambient Temperature is within 15°C (27°F).
HINT:
- When the engine is cold, the value of the intake air temperature, ECM internal temperature and ambient temperature should be approximately the same.
- Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
Refer to INITIALIZATION [08/2020 - ]
Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]
Result:
NG
REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to REMOVAL [08/2020 - ]