ECD SYSTEM(w/ Urea SCR System), Diagnostic DTC:P2080, P2084, P242B

DTC Code DTC Name
P2080 Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1
P2084 Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 2
P242B Exhaust Gas Temperature Sensor Circuit Range / Performance Bank 1 Sensor 3

DESCRIPTION

Refer to DTC P0545.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2080 Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1 The change in the exhaust temperature sensors from before the engine is started (after leaving the vehicle alone for 10 hours) and after driving for a fixed amount of time (approximately 15 minutes) is small (2 trip detection logic).

  • Exhaust gas temperature sensor

  • ECM (soak timer)

 Comes on DTC stored
P2084 Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 2 The change in the No. 2 exhaust temperature sensors from before the engine is started (after leaving the vehicle alone for 10 hours) and after driving for a fixed amount of time (approximately 15 minutes) is small (2 trip detection logic).

  • No. 2 exhaust gas temperature sensor

  • ECM (soak timer)

 Comes on DTC stored
P242B Exhaust Gas Temperature Sensor Circuit Range / Performance Bank 1 Sensor 3 The change in the No. 3 exhaust temperature sensors from before the engine is started (after leaving the vehicle alone for 10 hours) and after driving for a fixed amount of time (approximately 15 minutes) is small (2 trip detection logic).

  • No. 3 exhaust gas temperature sensor

  • ECM (soak timer)

 Comes on DTC stored
Related Data List
DTC No. Data List

P2080

P2084

P242B

  • Exhaust Temperature B1S1

  • Exhaust Temperature B1S2

  • Exhaust Temperature B1S3

Tech Tips


  • Sensor 1 represents the sensor located upstream of the DOC catalytic converter.

  • Sensor 2 represents the sensor located upstream of the DPF catalytic converter.

  • Sensor 3 represents the sensor located downstream of the DPF catalytic converter.

  • If DTC P2080, P2084 and/or P242B is stored, the following symptoms may appear:


    • White smoke

CONFIRMATION DRIVING PATTERN

DTC No. DTC Detection Drive Pattern
P2080 Check the exhaust gas temperature after leaving the vehicle for 1 to 2 hours and after driving*
P2084 Check the No. 2 exhaust gas temperature after leaving the vehicle for 1 to 2 hours and after driving*
P242B Check the No. 3 exhaust gas temperature after leaving the vehicle for 1 to 2 hours and after driving*

*: Drive the vehicle for 5 minutes or more at a speed of 50 km/h (31.1 mph) or more.

WIRING DIAGRAM

Refer to DTC P0545.

Click here

CAUTION / NOTICE / HINT

Note

After replacing the ECM, the new ECM needs registration (Click here) and initialization Click here.

Tech Tips

Read freeze frame data using the GTS. 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. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2080, P2084 AND P242B)


    1. Connect the GTS to the DLC3.

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

    3. Enter the following menus: Powertrain / Engine / Trouble Codes.

    4. Read the DTCs.


      Powertrain > Engine > Trouble Codes
      Result
      Result Proceed to
      DTC P2080, P2084 or P242B is output A
      DTC P2080, P2084 or P242B and other DTCs are output B

    B

    GO TO DTC CHART Click here

    A

  2. READ VALUE USING GTS (EXHAUST TEMPERATURE)


    1. Leave the vehicle as is for 1 to 2 hours with the engine stopped.

    2. Connect the GTS to the DLC3.

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

    4. Enter the following menus: Powertrain / Engine / Data List / Diesel Exhaust / Exhaust Temperature B1S1, Exhaust Temperature B1S2 and Exhaust Temperature B1S3.

    5. Record the exhaust temperature displayed on the GTS.


      Powertrain > Engine > Data List
      Tester Display
      Exhaust Temperature B1S1
      Exhaust Temperature B1S2
      Exhaust Temperature B1S3
      Result
      Proceed to
      NEXT

    NEXT

  3. INSPECT EXHAUST GAS TEMPERATURE SENSOR


    1. Drive the vehicle for 5 minutes or more at a speed of 50 km/h (31.1 mph) or more.

    2. Stop the vehicle.

    3. Connect the GTS to the DLC3.

    4. Enter the following menus: Powertrain / Engine / Data List / Diesel Exhaust / Exhaust Temperature B1S1, Exhaust Temperature B1S2 and Exhaust Temperature B1S3.

    5. Read the value.


      Powertrain > Engine > Data List
      Tester Display
      Exhaust Temperature B1S1
      Exhaust Temperature B1S2
      Exhaust Temperature B1S3
      Result
      Result Proceed to
      Difference between Exhaust Temperature B1S1 recorded in "READ VALUE USING GTS (EXHAUST TEMPERATURE)" and Exhaust Temperature B1S1 checked after driving is within +/-15°C (27°F) A
      Difference between Exhaust Temperature B1S2 recorded in "READ VALUE USING GTS (EXHAUST TEMPERATURE)" and Exhaust Temperature B1S2 checked after driving is within +/-15°C (27°F)
      Difference between Exhaust Temperature B1S3 recorded in "READ VALUE USING GTS (EXHAUST TEMPERATURE)" and Exhaust Temperature B1S3 checked after driving is within +/-15°C (27°F)
      Difference between exhaust temperature recorded in "READ VALUE USING GTS (EXHAUST TEMPERATURE)" and exhaust temperature checked after driving is equal to or greater than +/- 15°C (27°F) B

    B

    REPLACE ECM Click here

    A

  4. REPLACE EXHAUST GAS TEMPERATURE SENSOR

    Tech Tips

    Replace the exhaust temperature sensor that changed a small amount in "INSPECT EXHAUST GAS TEMPERATURE SENSOR".


    1. Replace the exhaust gas temperature sensor.

      Click here

    2. Replace the No. 2 exhaust gas temperature sensor.

      Click here

    3. Replace the No. 3 exhaust gas temperature sensor.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  5. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Leave the vehicle as is for 1 to 2 hours with the engine stopped.

    2. Connect the GTS to the DLC3.

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

    4. Enter the following menus: Powertrain / Engine / Data List / Diesel Exhaust / Exhaust Temperature B1S1, Exhaust Temperature B1S2 and Exhaust Temperature B1S3.

    5. Record the exhaust temperature displayed on the GTS.


      Powertrain > Engine > Data List
      Tester Display
      Exhaust Temperature B1S1
      Exhaust Temperature B1S2
      Exhaust Temperature B1S3

    6. Drive the vehicle for 5 minutes or more at a speed of 50 km/h (31.1 mph) or more.

    7. Stop the vehicle.

    8. Connect the GTS to the DLC3.

    9. Enter the following menus: Powertrain / Engine / Data List / Exhaust Temperature B1S1, Exhaust Temperature B1S2 and Exhaust Temperature B1S3.

    10. Check the exhaust temperature after leaving the vehicle for 1 to 2 hours and after driving.


      Powertrain > Engine > Data List
      Tester Display
      Exhaust Temperature B1S1
      Exhaust Temperature B1S2
      Exhaust Temperature B1S3
      Standard
      +/-15°C (27°F) or more
      Result
      Proceed to
      NEXT

    NEXT

    END

  6. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 5 Click here