DTC    P0697    Sensor Reference Voltage "C" Circuit / Open

for Preparation Click here


DESCRIPTION

Refer to DTC P0122 (Click here) and DTC P1120 (Click here).

P0697 
DTC Detection Drive Pattern
DTC Detection Condition
Trouble Area
Ignition switch is ON
Power voltages (5 V as standard) supplied from ECM to accelerator pedal position sensor and diesel throttle position sensor are lower or higher than appropriate thresholds.
(1 trip detection logic)
  1. Diesel throttle body assembly (throttle position sensor
  2. Open or short in diesel throttle position sensor circuit
  3. Accelerator pedal assembly (accelerator pedal position sensor assembly)
  4. Open or short in accelerator pedal position sensor circuit
  5. ECM

WIRING DIAGRAM

Refer to DTC P0122 (Click here) and DTC P1120 (Click here).

INSPECTION PROCEDURE

NOTICE:
When replacing the ECM, the ECM needs Registration and Initialization (Click here).

HINT:
  1. When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the intelligent tester. Then after installing the new ECM, perform all of the initializations/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.
  2. 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.

1.CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0697)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

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

  1. Read DTCs.
    Result 
    Result
    		Proceed to
    DTC P0697
    		A
    DTC P0697 and other DTCs
    		B

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



B
GO TO DTC CHART (Click here)
A


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


    A199035E01

  1. Disconnect the diesel throttle body assembly connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    Tester Connection
    		Condition
    		Specified Condition
    B37-5 (VC) - A19-46 (VVLU)
    		Always
    		Below 1 Ω
    B37-6 (VTA2) - A19-45 (VLU)
    		Always
    		Below 1 Ω
    B37-3 (E2) - A19-47 (EVLU)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):
    Tester Connection
    		Condition
    		Specified Condition
    B37-5 (VC) or A19-46 (VVLU) - Body ground
    		Always
    		10 kΩ or higher
    B37-6 (VTA2) or A19-45 (VLU) - Body ground
    		Always
    		10 kΩ or higher
    B37-3 (E2) or A19-47 (EVLU) - Body ground
    		Always
    		10 kΩ or higher

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Diesel Throttle Body Assembly)
    *2
    		Front view of wire harness connector
    (to ECM)

  1. Reconnect the diesel throttle body assembly connector.

  1. Reconnect the ECM connector.



NG
Go to step 9
OK


3.INSPECT ECM (VC VOLTAGE)


    A199036E01

  1. Disconnect the diesel throttle body assembly connector.

  1. Turn the ignition switch to ON.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    B37-5 (VC) - B37-3 (E2)
    		Ignition switch ON
    		4.5 to 5.5 V

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Diesel Throttle Body Assembly)

  1. Reconnect the diesel throttle body assembly connector.



NG
Go to step 10
OK


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


    A200290E01

  1. Disconnect the accelerator pedal position sensor connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    Tester Connection
    		Condition
    		Specified Condition
    A33-4 (VCPA) - A19-56 (VCPA)
    		Always
    		Below 1 Ω
    A33-6 (VPA) - A19-55 (VPA)
    		Always
    		Below 1 Ω
    A33-5 (EPA) - A19-57 (EPA)
    		Always
    		Below 1 Ω
    A33-1 (VCP2) - A19-53 (VCP2)
    		Always
    		Below 1 Ω
    A33-3 (VPA2) - A19-52 (VPA2)
    		Always
    		Below 1 Ω
    A33-2 (EPA2) - A19-54 (EPA2)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):
    Tester Connection
    		Condition
    		Specified Condition
    A33-4 (VCPA) or A19-56 (VCPA) - Body ground
    		Always
    		10 kΩ or higher
    A33-6 (VPA) or A19-55 (VPA) - Body ground
    		Always
    		10 kΩ or higher
    A33-5 (EPA) or A19-57 (EPA) - Body ground
    		Always
    		10 kΩ or higher
    A33-1 (VCP2) or A19-53 (VCP2) - Body ground
    		Always
    		10 kΩ or higher
    A33-3 (VPA2) or A19-52 (VPA2) - Body ground
    		Always
    		10 kΩ or higher
    A33-2 (EPA2) or A19-54 (EPA2) - Body ground
    		Always
    		10 kΩ or higher

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Accelerator Pedal Position Sensor)
    *2
    		Front view of wire harness connector
    (to ECM)

  1. Reconnect the accelerator pedal position sensor connector.

  1. Reconnect the ECM connector.



NG
Go to step 9
OK


5.INSPECT ECM (VC VOLTAGE)


    A200311E02

  1. Disconnect the accelerator pedal position sensor connector.

  1. Turn the ignition switch to ON.

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A33-4 (VCPA) - A33-5 (EPA)
    		Ignition switch ON
    		4.5 to 5.5 V
    A33-1 (VCP2) - A33-2 (EPA2)
    		Ignition switch ON
    		4.5 to 5.5 V

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Accelerator Pedal Position Sensor)

  1. Reconnect the accelerator pedal position sensor connector.



NG
Go to step 10
OK


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

  1. Replace the accelerator pedal assembly (Click here).


NEXT


7.CHECK WHETHER DTC OUTPUT RECURS (DTC P0697)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Clear the DTCs (Click here).

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

  1. Turn the ignition switch to ON.

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

  1. Read the DTC.
    Result 
    Result
    		Proceed to
    No DTC output
    		A
    DTC P0697
    		B



B
Go to step 8
A

END 

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

  1. Replace the diesel throttle body assembly (Click here).



NEXT
Go to step 11

9.REPAIR OR REPLACE HARNESS OR CONNECTOR


NEXT
Go to step 11

10.REPLACE ECM

  1. Replace the ECM (Click here).


NEXT


11.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

  1. Clear the DTCs (Click here).

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

  1. Turn the ignition switch to ON.

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

  1. Confirm that the DTC is not output again.


NEXT

END