Service Manual — page 151 of 715

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FUEL SYSTEM (DFI) 3-61
Intake Air Temperature Sensor (Service Code 13) (DTC P0110, P0112)
(Checking sensor for internal short circuit)
• Remove the intake air temperature sensor (see Intake Air
  Temperature Sensor Removal/Installation).
• Suspend the sensor [A] in a container of machine oil so
  that the heat-sensitive portion is submerged.
• Suspend a thermometer [B] with the heat-sensitive por-
  tion [C] located in almost the same depth with the sensor.
                               NOTE
    ○The sensor and thermometer must not touch the con-
      tainer side or bottom.

• Place  the container over a source of heat and gradually
  raise the temperature of the oil while stirring the oil gently
    for even temperature.
•   Using a digital meter, measure the internal resistance
    of the sensor across the terminals at the temperatures
    shown in the following.
    Intake Air Temperature Sensor Resistance
       Standard:     5.4 ∼ 6.6 kΩ @0°C (32°F)
                      0.29 ∼ 0.39 kΩ @80°C (176°F)
    If the reading is out of the standard, replace the intake air
    temperature sensor.
Intake Air Temperature Sensor Circuit

     1. ECU
     2. Intake Air Temperature Sensor