ECD SYSTEM (for CCo), Diagnostic DTC:P245C, P245D

DTC Code DTC Name
P245C EGR Cooler Bypass Control Circuit Low
P245D EGR Cooler Bypass Control Circuit High

DESCRIPTION

The EGR cooler VSV is controlled by the ECM, and the opening and closing of the EGR cooler bypass valve is performed according to the vacuum applied by the vacuum pump.

P245C
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 3 seconds

Open or short in the EGR cooler VSV for 3 seconds.

(1 trip detection logic)

  • Open or short in EGR cooler VSV circuit

  • EGR cooler VSV

  • ECM
P245D
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 3 seconds

Open or short in the EGR cooler VSV for 3 seconds.

(1 trip detection logic)

  • Open or short in EGR cooler VSV circuit

  • EGR cooler VSV

  • ECM

WIRING DIAGRAM

A003CYCE05

INSPECTION PROCEDURE

Note


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

  • Inspect the fuses of circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. INSPECT EGR COOLER VSV


    1. Inspect the EGR cooler VSV Click here.


    NG

    REPLACE EGR COOLER VSV Click here

    OK

  2. CHECK EGR COOLER VSV (POWER SOURCE CIRCUIT)


    1. A003BC7E01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to EGR cooler VSV)

      Disconnect the EGR cooler VSV connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B56-1 - Body ground Ignition switch ON 11 to 14 V

    3. Reconnect the EGR cooler VSV connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (EGR COOLER VSV - ECM)


    1. A003AMME01
      Text in Illustration
      *1

      Front view of wire harness connector

      (to EGR cooler VSV)
      *2

      Front view of wire harness connector

      (to ECM)

      Disconnect the EGR cooler VSV connector.

    2. Disconnect the ECM connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      B56-2 - B39-106 (ECBV) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      B56-2 or B39-106 (ECBV) - Body ground Always 10 kΩ or higher

    4. Reconnect the EGR cooler VSV connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  4. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  5. REPLACE EGR COOLER VSV


    1. Replace the EGR cooler VSV Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  6. REPAIR OR REPLACE HARNESS OR CONNECTOR

    Tech Tips

    If the voltage at the EGR cooler VSV connector is not 11 to 14 V, repair or replace the harness and connector between the EGR cooler VSV and EFI MAIN relay (including the EFI No. 2 fuse).


    1. Repair or replace the harness or connector.


    NEXT

  7. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Turn the ignition switch to ON for 3 seconds.

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

    5. Confirm that the DTC is not output again.


    NEXT

    END