ECD SYSTEM(w/ Glow Plug Controller), Diagnostic DTC:P0697

DTC Code DTC Name
P0697 Sensor Reference Voltage "C" Circuit / Open

DESCRIPTION

Refer to DTC P0122.

Click here

Refer to DTC P2122.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P0697

Sensor Reference Voltage "C" Circuit / Open

Supplied power (standard: 5 V) from the ECM to the accelerator pedal position sensor and diesel throttle position sensor are lower or higher than appropriate thresholds.

(1 trip detection logic)

  • Diesel throttle body assembly (diesel throttle position sensor)

  • Open or short in diesel throttle position sensor circuit

  • Accelerator pedal sensor assembly (accelerator pedal position sensor)

  • Open or short in accelerator pedal position sensor circuit

  • ECM

Comes on

DTC stored
Table 1. DTC Detection Drive Pattern

DTC No.

DTC Detection Drive Pattern

P0697

Ignition switch ON

WIRING DIAGRAM

Refer to DTC P0122.

Click here

Refer to DTC P2122.

Click here

CAUTION / NOTICE / HINT

Note:

When replacing the ECM, perform ECM Initialization and Registration.

Click here

Tip:

  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing a new ECM, perform all of the initialization and registration procedures 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. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0697)

    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 / Trouble Codes.

    4. Read the DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      Result

      Result

      Proceed to

      DTC P0697 is output

      A

      DTC P0697 and other DTCs are output

      B
      Tip:

      If any DTCs other than P0697 are output, troubleshoot those DTCs first.

    B

    GO TO DTC CHART

    Click hereClick hereClick here

    A

  2. CHECK HARNESS AND CONNECTOR (DIESEL THROTTLE BODY ASSEMBLY - ECM)

    1. Disconnect the diesel throttle body assembly 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

      B25-5 (VC) - B212-65 (VCTA)

      Always

      Below 1 Ω

      B25-6 (VTA) - B212-80 (VTA1)

      Always

      Below 1 Ω

      B25-3 (E2) - B212-112 (ETA)

      Always

      Below 1 Ω

      B25-5 (VC) or B212-65 (VCTA) - Body ground and other terminals

      Always

      10 kΩ or higher

      B25-6 (VTA) or B212-80 (VTA1) - Body ground and other terminals

      Always

      10 kΩ or higher

      B25-3 (E2) or B212-112 (ETA) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTORClick here

    OK

  3. CHECK TERMINAL VOLTAGE (VC VOLTAGE)

    A199036C03

    *a

    Front view of wire harness connector

    (to Diesel Throttle Body Assembly)

    1. Disconnect the diesel throttle body assembly connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      B25-5 (VC) - B25-3 (E2)

      Ignition switch ON

      4.5 to 5.5 V

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE ECMClick here

    OK

  4. CHECK HARNESS AND CONNECTOR (ACCELERATOR PEDAL SENSOR ASSEMBLY - ECM)

    1. Disconnect the accelerator pedal sensor assembly 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

      A3-4 (VCPA) - A169-27 (VCPA)

      Always

      Below 1 Ω

      A3-6 (VPA) - A169-42 (VPA)

      Always

      Below 1 Ω

      A3-5 (EPA) - A169-22 (EPA)

      Always

      Below 1 Ω

      A3-1 (VCP2) - A169-28 (VCP2)

      Always

      Below 1 Ω

      A3-3 (VPA2) - A169-43 (VPA2)

      Always

      Below 1 Ω

      A3-2 (EPA2) - A169-23 (EPA2)

      Always

      Below 1 Ω

      A3-4 (VCPA) or A169-27 (VCPA) - Body ground and other terminals

      Always

      10 kΩ or higher

      A3-6 (VPA) or A169-42 (VPA) - Body ground and other terminals

      Always

      10 kΩ or higher

      A3-5 (EPA) or A169-22 (EPA) - Body ground and other terminals

      Always

      10 kΩ or higher

      A3-1 (VCP2) or A169-28 (VCP2) - Body ground and other terminals

      Always

      10 kΩ or higher

      A3-3 (VPA2) or A169-43 (VPA2) - Body ground and other terminals

      Always

      10 kΩ or higher

      A3-2 (EPA2) or A169-23 (EPA2) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTORClick here

    OK

  5. CHECK TERMINAL VOLTAGE (VC VOLTAGE)

    A254580C02

    *a

    Front view of wire harness connector

    (to Accelerator Pedal Sensor Assembly)

    1. Disconnect the accelerator pedal sensor assembly connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      A3-4 (VCPA) - A3-5 (EPA)

      Ignition switch ON

      4.5 to 5.5 V

      A3-1 (VCP2) - A3-2 (EPA2)

      Ignition switch ON

      4.5 to 5.5 V

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE ECMClick here

    OK

  6. REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY (ACCELERATOR PEDAL POSITION SENSOR)

    1. Replace the accelerator pedal sensor assembly.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P0697)

    1. Connect the GTS to the DLC3.

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

    3. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs

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

    5. Turn the ignition switch to ON.

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

    7. Read the DTC.

      Powertrain > Engine and ECT > Trouble Codes

      Result

      Result

      Proceed to

      DTC is not output

      A

      DTC P0697 is output

      B
    A

    END

    B

  8. REPLACE DIESEL THROTTLE BODY ASSEMBLY (THROTTLE POSITION SENSOR)

    1. Replace the diesel throttle body assembly.

      Click hereClick here

    Result

    Proceed to

    NEXT
    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here

  9. REPLACE ECM

    1. Replace the ECM.

      Click here

    Result

    Proceed to

    NEXT
    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here

  10. REPAIR OR REPLACE HARNESS OR CONNECTOR

    Result

    Proceed to

    NEXT
    NEXT

  11. 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.

      Powertrain > Engine and ECT > Clear DTCs

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

    5. Turn the ignition switch to ON.

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

    7. Confirm that the DTC is not output again.

      Powertrain > Engine and ECT > Trouble Codes

    Result

    Proceed to

    NEXT
    NEXT

    END