ECD SYSTEM, Diagnostic DTC:P0096, P0097, P0098

DTC Code DTC Name
P0096 Turbocharged Air Temperature Sensor Gradient Test
P0097 Short to GND in Turbocharged Air Temperature Sensor Circuit
P0098 Open or Short to B+ in Turbocharged Air Temperature Sensor Circuit

DESCRIPTION

The turbocharger air temperature sensor is installed on the resonator hose. This sensor detects the temperature of the intake air passing through the resonator hose, and sends this signal to the ECM.

When the turbocharger air temperature is low, the resistance in the thermistor increases. When the turbocharger air temperature is high, the resistance drops. The variations in the resistance are reflected as voltage change at the ECM terminal.

Based on this signal, the ECM increases the fuel injection volume to improve the drivability while the engine is cold.

DTC No. DTC Detection Condition Trouble Area Possible to Detect
Ignition Switch Engine Run
P0096

The output voltage from the turbocharger air temperature sensor suddenly changes for 1.5 sec. or more.

(3 trip detection logic)

  • Turbocharger air temperature sensor

  • Turbocharger air temperature sensor circuit

  • ECM

 ON ON
P0097

The output voltage from the turbocharger air temperature sensor remains less than 0.1 V for 10 sec. or more.

(3 trip detection logic)

  • Turbocharger air temperature sensor

  • Turbocharger air temperature sensor circuit

  • ECM

 ON ON
P0098

The output voltage from the turbocharger air temperature sensor remains more than 4.95 V for 10 sec. or more.

(3 trip detection logic)

  • Turbocharger air temperature sensor

  • Turbocharger air temperature sensor circuit

  • ECM

 ON ON

FAIL-SAFE

DTC No. Fail-safe Operation Fail-safe Deactivation Condition
P0096 A value of 40°C (104°F) for turbocharger is used for ECM control. Normal condition is restored.
P0097 A value of 40°C (104°F) for turbocharger is used for ECM control. Normal condition is restored.
P0098 A value of 40°C (104°F) for turbocharger is used for ECM control. Normal condition is restored.

WIRING DIAGRAM

A0137PBE01

INSPECTION PROCEDURE

Tech Tips


  • f the ECM is replaced, variant coding (variant coding indicates the presence of vehicle accessory items, A/C, etc.) should always be performed Click here.

  • Before removing the ECM and the peripheral parts, wait at least 3 minute after turning the ignition switch off (If the cooling fan is operating, remove the ECM and the peripheral parts after the fan stops.).

PROCEDURE


  1. CHECK TURBOCHARGER AIR TEMPERATURE SENSOR


    1. A0138I2E01

      Disconnect the B36 turbocharger air temperature sensor connector.

    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Tester Connection Specified Condition
      1 - 2 The resistance value is within the acceptable range shown in the illustration.

      Tech Tips

      Refer to the table below.

      Turbocharger air temperature

      (°C (°F))

      		 Resistance (Ω)
      0 (32) 25,000 to 31,000
      20 (68) 10,000 to 14,000
      40 (104) 5,200 to 6,400
      60 (140) 2,600 to 3,300

    NG

    REPLACE TURBOCHARGER AIR TEMPERATURE SENSOR

    OK

  2. INSPECT ECM (VOLTAGE)


    1. A0135VQE01

      Disconnect the B36 turbocharger air temperature sensor connector.

    2. Turn the ignition switch to the ON position.

    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage
      Tester Connection Specified Condition
      Turbocharger air temperature sensor (B36-2) - Body ground 4.7 to 5.3 V

    NG

    CHECK HARNESS AND CONNECTOR (TURBOCHARGER AIR TEMPERATURE SENSOR - ECM) Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (TURBOCHARGER AIR TEMPERATURE SENSOR - ECM)


    1. A01382JE01

      Disconnect the B53 ECM connector.

    2. Disconnect the B36 turbocharger air temperature sensor connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Check for open
      Tester Connection Specified Condition
      ETHIA (B53-15) - Turbocharger air temperature sensor (B36-1) Below 1 Ω
      Check for short
      Tester Connection Specified Condition
      ETHIA (B53-15) or Turbocharger air temperature sensor (B36-1) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE TURBOCHARGER AIR TEMPERATURE SENSOR


    NEXT

  5. CHECK IF DTC RECURS (P0096, P0097 AND/OR P0098)


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTC Click here.

    3. Turn the ignition switch on and wait for 10 sec.

    4. Turn the intelligent tester on.

    5. Select the following menu items: Powertrain / Engine and ECT / DTC.

    6. Read the DTCs displayed on the intelligent tester.

      Result
      Display (DTC output) Proceed To
      No output A
      P0096, P0097 and/or P0098 B

    B

    REPLACE ECM

    A

    END

  6. CHECK HARNESS AND CONNECTOR (TURBOCHARGER AIR TEMPERATURE SENSOR - ECM)


    1. A01382JE01

      Disconnect the B53 ECM connector.

    2. Disconnect the B36 turbocharger temperature sensor connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance
      Check for open
      Tester Connection Specified Condition
      THIA (B53-2) - Turbocharger air temperature sensor (B36-2) Below 1 Ω
      Check for short
      Tester Connection Specified Condition
      THIA (B53-2) or Turbocharger air temperature sensor (B36-2) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK POWER SOURCE CIRCUIT


    1. Check that the battery voltage, ECM power source voltage, and the ground condition of the ECM are normal.

      OK
      The battery voltage, ECM power source voltage, and the ground condition of the ECM are normal.

      Tech Tips

      Make sure that the battery is not discharged during the inspection.


    NG

    REPAIR POWER SOURCE CIRCUIT

    OK

    REPLACE ECM