DTC P0110-15: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open [03/2023 - ]: Procedure
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. 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 (except Mexico Models)
GTS Display Specified Condition Intake Air Temperature Higher than 128°C (262°F) OK (for Mexico Models)
Techstream Display Specified Condition Intake Air Temperature Higher than 138°C (280°F) HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
Refer to INITIALIZATION [11/2021 - ]
Result
Proceed to OK NG
Result:
OK
REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to REMOVAL [11/2021 - ]
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 B20-4 (THA) - B92-102 (THA) Always Below 1 Ω B20-2 (E2G) - B92-79 (E2G) Always Below 1 Ω B20-4 (THA) or B92-102 (THA) - Other terminals Always 10 kΩ or higher Result
Proceed to OK NG
Result:
OK
REPLACE ECM. Refer to REMOVAL [11/2021 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR