ECD SYSTEM, Diagnostic DTC:P0704

DTC Code DTC Name
P0704 Clutch Switch Input Circuit

DESCRIPTION

The clutch switch is mounted on the clutch pedal.

Clutch start switch signal is input to the ECM in the CAN communication.

DTC No. DTC Detection Condition Trouble Area
P0704

No clutch switch signals to ECM despite gears being shifted.

(3 trip detection logic)

  • CAN malfunction system

  • Brake pedal stroke sensor (Clutch pedal stroke sensor)

  • Electric parking brake ECU (Parking brake with bracket actuator assembly)

  • ECM

WIRING DIAGRAM

A004NJ2E03
*1 Electric Parking Brake ECU (Parking Brake with Bracket Actuator Assembly)
*2 CAN Bus Line

CAUTION / NOTICE / HINT

Note


  • When replacing the ECM, the ECM needs Registration and Initialization Click here.

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

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. CHECK WHETHER DTC OUTPUT RECURS (CAN COMMUNICATION SYSTEM)


    1. Check if CAN malfunction DTCs related to the electric parking brake ECU (parking brake with bracket actuator assembly) are output Click here.

      Result
      Result Proceed to
      No DTC output A
      DTC output B

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK WHETHER DTC OUTPUT RECURS (ELECTRIC PARKING BRAKE SYSTEM)


    1. Check for DTCs Click here.

      Result
      Result Proceed to
      No DTC output A
      DTCs related in the brake pedal stroke sensor (clutch pedal stroke sensor) are detected B

    B

    GO TO ELECTRIC PARKING BRAKE SYSTEM Click here

    A

  3. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

  4. 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

    END