3-54 FUEL SYSTEM (DFI)
Inlet Air Temperature Sensor (Service Code 13)
Never drop the sensor, especially on a hard surface.
Such a shock to the sensor can damage it.
Remove the fuel tank (see Fuel Tank Removal in this
Disconnect the connector [A] from the inlet air tempera-
Pull out the inlet air temperature sensor [B].
Install the inlet air temperature sensor [A] in the grommet
Output Voltage Inspection
Be sure the battery is fully charged.
Remove the ECU (see ECU Removal in this chapter). Do
not disconnect the ECU connectors.
Connect a digital voltmeter [A] to the ECU connector, us-
ing needle adapter set [B].
Special Tool - Needle Adapter Set: 57001-1457
Inlet Air Temperature Sensor Output Voltage
Connections to ECU Connector
Meter (+) → P lead (terminal 26)
Meter (–) → BR/BK lead (terminal 28)
Measure the sensor output voltage with the engine
stopped and the connector joined.
Turn the ignition switch ON.
Output Voltage at ECU
Standard: About 2.25 ∼ 2.50 V at inlet air temperature
The output voltage changes according to the inlet air
Turn the ignition switch OFF.