DTC P0110-15: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open [08/2023 - ]: Procedure

Pre-procedure1

• Disconnect the mass air flow meter sub-assembly connector.

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *1	Mass Air Flow Meter Sub-assembly	*2	ECM
  *a	Front view of wire harness connector (to Mass Air Flow Meter Sub-assembly)	-	-

• 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)

  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 [10/2022 - ]

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None.

Result: 

OK 

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

Result: 

NG 

See step  2

Pre-procedure1

• 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	Result
  B14-4 (THA) - B28-102 (THA)	Always	Below 1 Ω	Ω
  B14-2 (E2G) - B28-79 (E2G)	Always	Below 1 Ω	Ω
  B14-4 (THA) or B28-102 (THA) - Other terminals	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None.

Result: 

OK 

REPLACE ECM. Refer to  REMOVAL [08/2023 - ] 

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR