ECD SYSTEM (w/ DPF), Diagnostic DTC:P245C, P245D

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

DESCRIPTION

The No. 3 vacuum switching valve (for EGR cooler bypass valve) 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 No. 3 vacuum switching valve (for EGR cooler bypass valve) for 3 seconds (1 trip detection logic).

  • Open or short in No. 3 vacuum switching valve (for EGR cooler bypass valve) circuit

  • No. 3 vacuum switching valve (for EGR cooler bypass valve)

  • ECM
P245D
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Ignition switch ON for 3 seconds Open or short in the No. 3 vacuum switching valve (for EGR cooler bypass valve) for 3 seconds (1 trip detection logic).

  • Open or short in No. 3 vacuum switching valve (for EGR cooler bypass valve) circuit

  • No. 3 vacuum switching valve (for EGR cooler bypass valve)

  • ECM

WIRING DIAGRAM

A01KHRSE03

INSPECTION PROCEDURE

Note


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

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

  • After replacing the fuel supply pump assembly or suction control valve, the ECM needs initialization Click here.

  • After replacing an injector assembly, the ECM needs registration Click here.

Tech Tips

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. INSPECT NO. 3 VACUUM SWITCHING VALVE (FOR EGR COOLER BYPASS VALVE)


    1. Inspect the No. 3 vacuum switching valve (for EGR cooler bypass valve) Click here.


    NG

    REPLACE NO. 3 VACUUM SWITCHING VALVE (FOR EGR COOLER BYPASS VALVE) Click here

    OK

  2. CHECK NO. 3 VACUUM SWITCHING VALVE (FOR EGR COOLER BYPASS VALVE) (POWER SOURCE)


    1. A01KG85E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to No. 3 Vacuum Switching Valve (for EGR Cooler Bypass Valve))

      Disconnect the No. 3 vacuum switching valve (for EGR cooler bypass valve) connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      V5-1 (+B) - Body ground Ignition switch ON 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (NO. 3 VACUUM SWITCHING VALVE (FOR EGR COOLER BYPASS VALVE) - ECM)


    1. Disconnect the No. 3 vacuum switching valve (for EGR cooler bypass valve) 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
      V5-2 (ECBV) - E10-4 (ECBV) Always Below 1 Ω
      V5-2 (ECBV) or E10-4 (ECBV) - Body ground Always 10 kΩ or higher

    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 NO. 3 VACUUM SWITCHING VALVE (FOR EGR COOLER BYPASS VALVE)


    1. Replace the No. 3 vacuum switching valve (for EGR cooler bypass valve) Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  6. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.

      Tech Tips

      If the voltage at the No. 3 vacuum switching valve (for EGR cooler bypass valve) connector is not 11 to 14 V, repair or replace the harness and connector between the No. 3 vacuum switching valve (for EGR cooler bypass valve) and EFI MAIN relay.


    NEXT

  7. 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 to ON for 3 seconds.

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

    6. Confirm that the DTC is not output again.


    NEXT

    END