SFI SYSTEM, Diagnostic DTC:P0704

DTC Code DTC Name
P0704 Clutch Switch Input Circuit Malfunction

DESCRIPTION

The clutch 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.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

P0704

Clutch Switch Input Circuit Malfunction

No clutch switch signals to ECM despite gears being shifted (3 trip detection logic).

  • Open or short in clutch switch assembly circuit

  • Clutch switch assembly

  • ECM

Does not come on

DTC stored (for M/T models)

- (for MMT models)

WIRING DIAGRAM

A326912E02

CONFIRMATION DRIVING PATTERN

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

CAUTION / NOTICE / HINT

Note:

  • After replacing the ECM, perform idle learning.

    Click here

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

PROCEDURE

  1. CHECK CLUTCH SWITCH ASSEMBLY INSTALLATION

    1. Check the clutch switch assembly installation condition.

      Click here

      OK

      Clutch switch assembly is installed correctly.

    Result

    Proceed to

    OK

    NG
    NG

    SECURELY REINSTALL SWITCH

    Click here

    OK

  2. INSPECT CLUTCH SWITCH ASSEMBLY

    1. Inspect the clutch switch assembly.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE CLUTCH SWITCH ASSEMBLY

    Click here

    OK

  3. CHECK TERMINAL VOLTAGE (POWER SOURCE OF CLUTCH SWITCH ASSEMBLY)

    1. Disconnect the clutch 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

      Tester Connection

      Condition

      Specified Condition

      A18-1 (CL+) - Body ground

      Ignition switch ON

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    NG

    CHECK HARNESS AND CONNECTOR (CLUTCH SWITCH ASSEMBLY - EFI-MAIN RELAY)Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (ECM - CLUTCH SWITCH ASSEMBLY)

    1. Disconnect the ECM connector.

    2. Disconnect the clutch switch assembly connector.

    3. Disconnect the A24 engine stop and start ECU connector. (w/ stop and start system)

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      B31-28 (D) - A18-2 (CL-)

      Always

      Below 1 Ω

      B31-28 (D) or A18-2 (CL-) - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ECM

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  5. CHECK HARNESS AND CONNECTOR (CLUTCH SWITCH ASSEMBLY - EFI-MAIN RELAY)

    1. Disconnect the clutch switch assembly connector.

    2. Disconnect the driver side junction block assembly connector.

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      A18-1 (CL+) - 3C-2

      Always

      Below 1 Ω

      A18-1 (CL+) or 3C-2 - Body ground

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    CHECK ECM POWER SOURCE CIRCUIT

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR