ECD SYSTEM, Diagnostic DTC:P1061

DTC Code DTC Name
P1061 Charge Air Cooler Efficiency

DESCRIPTION

Refer to DTC P007C Click here.

DTC No. DTC Detection Condition Trouble Area
P1061

Malfunctioning charge air cooler determined when calculated efficiency of charge air cooler is less than limit value for 0.22 seconds.

(3 trip detection logic)


  • Intake air temperature sensor

  • Intake system air leak

  • Dirty intercooler assembly fins

  • Intercooler assembly

  • ECM

Related Data List
DTC No. Data List
P1061 Intake Air Temp (Turbo)

WIRING DIAGRAM

Refer to DTC P007C Click here.

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 GTS. 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 GTS display.

  • 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. READ VALUE USING GTS (INTAKE AIR TEMP (TURBO))


    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 and ECT / Data List / Intake Air Temp (Turbo).

    4. Read the value.

      OK
      -40°C (-40°F) to 120°C (248°F).

    NG
    OK
  2. CHECK HARNESS AND CONNECTOR (INTAKE AIR TEMPERATURE SENSOR - ECM)


    1. Disconnect the intake air temperature sensor 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
      B95-1 (THA) - B91-79 (THIA) Always Below 1 Ω
      B95-2 (E2) - B91-89 (ETHI) Always Below 1 Ω
      B95-1 (THA) or B91-79 (THIA) - Body ground Always 10 kΩ or higher

    NG
    OK
  3. INSPECT INTAKE AIR TEMPERATURE SENSOR


    1. Inspect the intake air temperature sensor Click here.


    NG
    OK
  4. CHECK INTAKE SYSTEM


    1. Start the engine.

    2. Check air duct between intake silencer, mass air flow meter and turbocharger for leaks.

    3. Check air duct between turbocharger and intake manifold for leaks.

      Tech Tips


      • Oily patches are signs of leaks.

      • Check whether sealing rings on charge air hoses are rolled back or missing.

      OK
      No leakage.

    NG
    OK
  5. CHECK INTERCOOLER ASSEMBLY FINS FOR DIRT


    1. Check intercooler assembly fins for dirt.


    NG
    OK
  6. REPLACE INTERCOOLER ASSEMBLY


    1. Replace the Intercooler Assembly


    NEXT
  7. REPLACE INTAKE AIR TEMPERATURE SENSOR


    1. Replace the intake air temperature sensor Click here.


    NEXT
  8. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.


    NEXT
  9. REPAIR OR REPLACE INTAKE SYSTEM


    1. Repair or replace the malfunctioning parts of the intake system.


    NEXT
  10. CLEAN INTERCOOLER ASSEMBLY


    1. Clean the intercooler assembly fins.


    NEXT
  11. CHECK WHETHER DTC OUTPUT RECURS (DTC P1061)


    1. Connect the GTS to the DLC3.

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

    3. Clear the DTCs Click here.

    4. Turn the ignition switch off and wait for 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    8. Read the DTCs.

      Result
      Result Proceed to
      No DTC output A
      DTC P1061 is output B

    A
    B
  12. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT
  13. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

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

    3. Clear the DTCs Click here.

    4. Turn the ignition switch off and wait for 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    8. Confirm that the DTC is not output again.


    NEXT