ECD SYSTEM, Diagnostic DTC:P0704

DTC Code DTC Name
P0704 Clutch Switch Input Circuit Malfunction

DESCRIPTION

The clutch switch is mounted on the clutch pedal. The switch is turned off when depressing the clutch pedal, and transmits a signal to the ECM.

P0704
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Gears are shifted more than 10 times

No clutch switch signals to ECM despite gears being shifted.

(2 trip detection logic)

  • Open or short in clutch switch circuit

  • No. 2 clutch start switch assembly

  • ECM

WIRING DIAGRAM

A005JVGE03

CAUTION / NOTICE / HINT

Note

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

Tech Tips

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 initialization/registrations for the "Learning Values Write" function by following the instructions shown on the tester display.

PROCEDURE


  1. INSPECT NO. 2 CLUTCH START SWITCH ASSEMBLY


    1. A005HPWE06
      Text in Illustration
      *a

      Component without harness connected

      (No. 2 clutch start switch assembly)
      *b 6.5 to 7.5 mm (0.256 to 0.295 in.)

      Remove the No. 2 clutch start switch assembly.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 - 2 Pushed in Below 1 Ω
      Released 10 kΩ or higher

    3. Reinstall the No. 2 clutch start switch assembly.


    NG

    REPLACE NO. 2 CLUTCH START SWITCH ASSEMBLY Click here

    OK

  2. CHECK NO. 2 CLUTCH START SWITCH ASSEMBLY


    1. Check the No. 2 clutch start switch assembly installation Click here.

      OK
      No. 2 clutch start switch assembly is installed correctly.

    NG

    SECURELY REINSTALL NO. 2 CLUTCH START SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (ECM - NO. 2 CLUTCH START SWITCH ASSEMBLY)


    1. Disconnect the No. 2 clutch start switch assembly 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
      A40-2 - A59-5 (D) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A40-2 or A59-5 (D) - Body ground Always 10 kΩ or higher

    4. Reconnect the No. 2 clutch start switch assembly connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (POWER SOURCE)


    1. A005GW5E02
      Text in Illustration
      *a

      Front view of wire harness connector

      (No. 2 clutch start switch assembly)

      Disconnect the No. 2 clutch start switch assembly connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A40-1 - Body ground Ignition switch ON 11 to 14 V

    3. Reconnect the No. 2 clutch start switch assembly connector.


    NG

    INSPECT INTEGRATION NO.1 RELAY Click here

    OK

  5. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  6. SECURELY REINSTALL NO. 2 CLUTCH START SWITCH ASSEMBLY


    1. Securely reinstall the No. 2 clutch start switch assembly Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  7. REPLACE NO. 2 CLUTCH START SWITCH ASSEMBLY


    1. Replace the No. 2 clutch start switch assembly Click here.


    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here

  8. REPAIR OR REPLACE HARNESS OR CONNECTOR


    NEXT

  9. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the intelligent tester to the DLC3.

    2. Clear the DTCs Click here.

    3. Start the engine.

    4. Change the shift more than 10 times during city driving.

    5. Confirm that the DTC is not output again.


    NEXT

    END

  10. INSPECT INTEGRATION NO.1 RELAY


    1. Disconnect the No. 2 clutch start switch assembly connector.

    2. Remove the No. 1 integration relay from engine room main relay block.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      A40-1 - 1D-10 Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      A40-1 or 1D-10 - Body ground Always 10 kΩ or higher

    4. Reconnect the No. 2 clutch start switch assembly connector.

    5. Reinstall the No. 1 integration relay.


    OK

    CHECK HARNESS AND CONNECTOR (NO. 1 INTEGRATION RELAY - BATTERY)

    NG

    REPLACE INTEGRATION NO.1 RELAY