DTC P0110-15: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open [12/2019 - 10/2022]: Procedure

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the mass air flow meter sub-assembly connector.
2. Connect terminals 4 (THA) and 2 (E2G) of the mass air flow meter sub-assembly connector on the wire harness side.
3. 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

   GTS 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 [12/2019 - 10/2022]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE MASS AIR FLOW METER SUB-ASSEMBLY. Refer to  REMOVAL [12/2019 - 10/2022] 

Result: 

NG 

See step  2

1. Disconnect the mass air flow meter sub-assembly connector.
2. Disconnect the ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   C30-4 (THA) - C54-102 (THA)	Always	Below 1 Ω
   C30-2 (E2G) - C54-115 (E2G)	Always	Below 1 Ω
   C30-4 (THA) or C54-102 (THA) - Other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [12/2019 - 09/2020]  , or refer to  REMOVAL [09/2020 - 10/2022] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR