DTC P0110-15: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open [10/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Toyota Highlander, 2024 Toyota Highlander, and 2023 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- READ VALUE USING GTS (CHECK FOR OPEN IN WIRE HARNESS)
*1 Mass Air Flow Meter Sub-assembly *2 ECM *a Front view of wire harness connector
(to Mass Air Flow Meter Sub-assembly)- - - Disconnect the mass air flow meter sub-assembly connector.
- Connect terminals 4 (THA) and 2 (E2G) of the mass air flow meter sub-assembly connector on the wire harness side.
- According to the display on the GTS, read the Data List.
Powertrain > Engine > Data List
Tester Display Intake Air Temperature OK
GTS Display Specified Condition Intake Air Temperature Higher than 128°C (262°F) HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
Refer to INITIALIZATION [10/2022 - ]
Result
Proceed to OK NG
Result:
OK
REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to REMOVAL [10/2022 - ]
Result:
NG
See step 2
- CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER SUB-ASSEMBLY - ECM)
- Disconnect the mass air flow meter sub-assembly connector.
- Disconnect the ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition C30-4 (THA) - C88-76 (THA) Always Below 1 Ω C30-2 (E2G) - C88-74 (E2G) Always Below 1 Ω C30-4 (THA) or C88-76 (THA) - Other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR