Service Manual — page 150 of 715

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3-60 FUEL SYSTEM (DFI)
Intake Air Temperature Sensor (Service Code 13) (DTC P0110, P0112)
(Checking wire for short circuit to power supply wire)
• Connect the ECU connectors.
• Connect the measuring adapter [A] between the harness
  connector and intake air temperature sensor.
   Main Harness [B]
   Intake Air Temperature Sensor [C]
    Special Tool - Measuring Adapter: 57001-1700
• Connect
  leads.
          a digital meter [D] to the measuring adapter

    Intake Air Temperature Sensor Output Voltage
       Connections to Adapter:
        Digital Meter (+) → R (sensor R/BK) lead
        Digital Meter (–) → BK (sensor G) lead

• Measure   the output voltage with the engine stopped and
  with the connector joined.
• Turn the ignition switch on.
    Output Voltage
     Standard:       About DC 2.25 ∼ 2.50 V @20°C (68°F)

                             NOTE
    ○The output voltage changes according to the intake air
      temperature.

• Turn  the ignition switch off.
  If the reading is out of the standard, repair or replace the
    main harness.
    If the main harness is no problem, replace the intake air
    temperature sensor.
Intake Air Temperature Sensor Inspection (Service
Code 13/DTC P0112)
(Checking wire for short circuit to ground)
• Disconnect:
   ECU Connectors (see ECU Removal)
   Intake Air Temperature Sensor Connector (see Intake
   Air Temperature Sensor Removal/Installation)
• Check the wiring for short circuit to ground by checking
  continuity between the sensor connector [A] and frame
  ground [B].
    Wiring Continuity Inspection
     R/BK lead (ECU terminal 16) [C] ←→ Frame Ground
    If there is continuity, repair or replace the main harness.
    If there is no continuity, check the intake air temperature
    sensor resistance.