BOOST AIR TEMPERATURE SENSOR INSPECTION [SKYACTIV-G 2.5T]

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Note
•  The boost pressure sensor and boost air temperature sensor cannot be removed as a single unit. When replacing the boost air temperature sensor, replace the boost pressure sensor/boost air temperature sensor.

Function inspection

1.  Connect the M-MDS to the DLC-2.

2.  Switch the ignition ON (engine off).

3.  Display the PID TP_UP_TEMP. (See ON-BOARD DIAGNOSTIC TEST [PCM (SKYACTIV-G 2.5T)].) (See PCM INSPECTION [SKYACTIV-G 2.5T].)

4.  Compare the voltage and temperature indications for the PID TP_UP_TEMP with the standard in the table indicated below.

•  If they do not match the standard, perform the resistance inspection. (See Resistance Inspection.)

Standard

PID TP_UP_TEMP

V

°C {°F}
Approx. 3.57
20 {68}
Approx. 2.70
40 {104}
Approx. 1.87
60 {140}


Resistance Inspection

1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Remove the boost pressure sensor/boost air temperature sensor. (See BOOST PRESSURE SENSOR/BOOST AIR TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)

3.  Measure the resistance between boost pressure sensor/boost air temperature sensor terminals A and B.

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•  If not as specified, replace the boost pressure sensor/boost air temperature sensor. (See BOOST PRESSURE SENSOR/BOOST AIR TEMPERATURE SENSOR REMOVAL/INSTALLATION [SKYACTIV-G 2.5T].)

Specification (Reference)

IAT (°C {°F})

Resistance (Kilohms)
0 {32}
Approx. 5.9
20 {68}
Approx. 2.5
80 {176}
Approx. 0.323
130 {266}
Approx. 0.0893

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