SFI SYSTEM, Diagnostic DTC:P0704

DTC Code DTC Name
P0704 Clutch Switch Input Circuit Malfunction

DESCRIPTION

The No. 2 clutch start switch assembly is mounted on the clutch pedal. The switch is turned off when depressing the clutch pedal, and transmits a signal to the ECM.

DTC No. DTC Detection Condition Trouble Area
P0704

No clutch switch signals to ECM despite gears being shifted

(3 trip detection logic)

  • Open or short in No. 2 clutch switch assembly circuit

  • No. 2 clutch start switch assembly

  • ECM

Tech Tips

DTC P0704 is stored when the gears are shifted more than 20 times.

WIRING DIAGRAM

A01VE1LE01

CAUTION / NOTICE / HINT

Note


  • Perform electronic throttle learning after replacing the ECM Click here.

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

PROCEDURE


  1. CHECK SWITCH INSTALLATION (NO. 2 CLUTCH START SWITCH ASSEMBLY)


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

      OK
      The switch is installed correctly.

    NG

    SECURELY REINSTALL (NO. 2 CLUTCH START SWITCH ASSEMBLY) Click here

    OK

  2. INSPECT NO. 2 CLUTCH START SWITCH ASSEMBLY


    1. Inspect the No. 2 Clutch Start Switch Assembly Click here.


    NG

    REPLACE NO. 2 CLUTCH START SWITCH ASSEMBLY Click here

    OK

  3. CHECK TERMINAL VOLTAGE (NO. 2 CLUTCH START SWITCH ASSEMBLY)

    A01VEKDE02
    Text in Illustration
    *a

    Front view of wire harness connector

    (to No. 2 Clutch Start Switch Assembly for LHD)
    *b

    Front view of wire harness connector

    (to No. 2 Clutch Start Switch Assembly for RHD)

    1. Disconnect the No. 2 Clutch Start Switch Assembly connector.

    2. Turn the ignition switch to ON.

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

      Standard Voltage
      for LHD
      Tester Connection Switch Condition Specified Condition
      A40-1 - Body ground Ignition switch ON 11 to 14 V
      for RHD
      Tester Connection Switch Condition Specified Condition
      A41-1 - Body ground Ignition switch ON 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (NO. 2 CLUTCH START SWITCH ASSEMBLY - NO. 1 INTEGRATION RELAY) Click here

    OK

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


    1. Disconnect the ECM connector.

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

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      B87-8 (D) - A40-2 Always Below 1 Ω
      B87-8 (D) or A40-2 - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      B87-8 (D) - A41-2 Always Below 1 Ω
      B87-8 (D) or A41-2 - Body ground Always 10 kΩ or higher

    OK

    REPLACE ECM Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. CHECK HARNESS AND CONNECTOR (NO. 2 CLUTCH START SWITCH ASSEMBLY - NO. 1 INTEGRATION RELAY)


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

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

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      A40-1 - 1D-10 Always Below 1 Ω
      A40-1 or 1D-10 - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      A41-1 - 1D-10 Always Below 1 Ω
      A41-1 or 1D-10 - Body ground Always 10 kΩ or higher

    OK

    CHECK ECM POWER SOURCE CIRCUIT Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR