ECD SYSTEM(w/ DPF), Diagnostic DTC:P2032, P2033

DTC Code DTC Name
P2032 Exhaust Gas Temperature Sensor Circuit Low (Bank 1 Sensor 2)
P2033 Exhaust Gas Temperature Sensor Circuit High (Bank 1 Sensor 2)

DESCRIPTION

Refer to DTC P0545 Click here.

P2032
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine idling for 2 seconds or more

Exhaust gas temperature sensor B1S2 output voltage is 0.15 V or less.

(2 trip detection logic)

  • Open or short in exhaust gas temperature sensor B1S2 circuit

  • Exhaust gas temperature sensor B1S2

  • ECM
P2033
DTC Detection Drive Pattern DTC Detection Condition Trouble Area

All of following conditions are met


  • Engine idling for 2 seconds or more

  • Engine coolant temperature is 80°C (176°F) or more.

  • 11 minutes elapsed after engine start.

Exhaust gas temperature sensor B1S2 output voltage is 3.28 V or more.

(2 trip detection logic)

  • Open or short in exhaust gas temperature sensor B1S2 circuit

  • Exhaust gas temperature sensor B1S2

  • ECM
Related Data List
DTC No. Data List
P2032 Exhaust Temperature B1S2
P2033

Tech Tips

When DTC P2032 or P2033 is stored, check the exhaust gas temperature by entering the following menus on the intelligent tester: Powertrain / Engine and ECT / Data List / Exhaust Temperature B1S2.

Temperature Displayed Malfunction
20°C (68°F) Open circuit
900°C (1652°F) Short circuit

WIRING DIAGRAM

A01VJ23E12
*a Exhaust Gas Temperature Sensor B1S2

CAUTION / NOTICE / HINT

Note

When replacing the ECM, the ECM needs Registration and Initialization Click here.

Tech Tips


  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. Then after installing the new ECM, perform all of the initialization/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.

  • Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (EXHAUST TEMPERATURE B1S2)


    1. Connect the intelligent tester to the DLC3.

    2. Start the engine and warm it up.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Exhaust Temperature B1S2.

    5. Read the value.

      Standard value
      Same as the actual exhaust gas temperature (50 to 700°C [122 to 1292°F] during idling after warm-up).
      Result
      Result Proceed to
      20°C (68°F) A
      900°C (1652°F) B
      Same as the actual exhaust gas temperature (50 to 700°C [122 to 1292°F] during idling after warm-up) C

      Tech Tips


      • If there is an open circuit, the intelligent tester indicates 20°C (68°F).

      • If there is a short circuit, the intelligent tester indicates 900°C (1652°F).


    B

    READ VALUE USING INTELLIGENT TESTER (CHECK FOR SHORT IN WIRE HARNESS) Click here

    C

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

    A

  2. READ VALUE USING INTELLIGENT TESTER (CHECK FOR OPEN IN WIRE HARNESS)


    1. A01VLG4E01
      Text in Illustration
      *1 Exhaust Gas Temperature Sensor B1S2
      *2 ECM
      *a

      Front view of wire harness connector

      (to Exhaust Gas Temperature Sensor B1S2)

      Disconnect the exhaust gas temperature sensor B1S2 connector.

    2. Connect terminals THCO and E2 of the exhaust gas temperature sensor B1S2 wire harness side connector.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the ignition switch to ON and turn the tester on.

    5. Enter the following menus: Powertrain / Engine and ECT / Data List / Exhaust Temperature B1S2.

    6. Read the value.

      Standard value
      900°C (1652°F)

    OK

    CONFIRM GOOD CONNECTION AT SENSOR. IF OK, REPLACE EXHAUST GAS TEMPERATURE SENSOR B1S2 Click here

    NG

  3. CHECK HARNESS AND CONNECTOR (EXHAUST GAS TEMPERATURE SENSOR B1S2 - ECM)


    1. Disconnect the exhaust gas temperature sensor B1S2 connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B41-1 (THCO) - A59-48 (THCO) Always Below 1 Ω
      B41-2 (E2) - A59-49 (ETCO) Always Below 1 Ω

    OK

    CONFIRM GOOD CONNECTION TO ECM. IF OK, REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

  4. READ VALUE USING INTELLIGENT TESTER (CHECK FOR SHORT IN WIRE HARNESS)


    1. A01VKTQE39
      Text in Illustration
      *1 Exhaust Gas Temperature Sensor B1S2
      *2 ECM

      Disconnect the exhaust gas temperature sensor B1S2 connector.

    2. Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to ON and turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Exhaust Temperature B1S2.

    5. Read the value.

      Standard value
      20°C (68°F)

    OK

    REPLACE EXHAUST GAS TEMPERATURE SENSOR B1S2 Click here

    NG

  5. CHECK HARNESS AND CONNECTOR (EXHAUST GAS TEMPERATURE SENSOR B1S2 - ECM)


    1. Disconnect the exhaust gas temperature sensor B1S2 connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      B41-1 (THCO) or A59-48 (THCO) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  6. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  7. CONFIRM GOOD CONNECTION AT SENSOR. IF OK, REPLACE EXHAUST GAS TEMPERATURE SENSOR B1S2


    1. Replace the exhaust gas temperature sensor B1S2 Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  8. REPAIR OR REPLACE HARNESS OR CONNECTOR


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  9. CONFIRM GOOD CONNECTION TO ECM. IF OK, REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  10. REPLACE EXHAUST GAS TEMPERATURE SENSOR B1S2


    1. Replace the exhaust gas temperature sensor B1S2 Click here.


    NEXT

  11. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester on.

    3. Clear the DTCs Click here.

    4. Turn the ignition switch off and wait for 30 seconds or more.

    5. Turn the ignition switch to ON and wait for 10 seconds or more.

    6. Start the engine and wait until the engine coolant temperature is 80°C (176°F) or more.

    7. Confirm that 11 minutes or more elapsed after engine was started.

    8. Enter the following menus: Powertrain / Engine and ECT / DTC / Pending.

    9. Confirm that the pending DTC is not output again.


    NEXT

    END