DTC    P0704    Clutch Switch Input Circuit Malfunction

for Preparation Click here


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)
  1. Open or short in clutch switch circuit
  2. Clutch switch
  3. ECM

WIRING DIAGRAM


A199004E01


INSPECTION PROCEDURE

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

HINT:
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.

1.INSPECT CLUTCH SWITCH ASSEMBLY


    A199026E01

  1. Remove the clutch switch assembly.

  1. 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

  1. Reinstall the clutch switch assembly.



NG
Go to step 6
OK


2.CHECK CLUTCH SWITCH INSTALLATION

  1. Check the clutch switch installation (Click here).

    OK:
    Clutch switch is installed correctly.



NG
Go to step 5
OK


3.CHECK HARNESS AND CONNECTOR (ECM - CLUTCH SWITCH - BODY GROUND)

  1. Disconnect the clutch switch connector.



    A199027E01

  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
    A30-1 - A19-8 (CLSW)
    		Always
    		Below 1 Ω
    A30-2 - Body ground
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):
    Tester Connection
    		Condition
    		Specified Condition
    A30-1 or A19-8 (CLSW) - Body ground
    		Always
    		10 kΩ or higher

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Clutch Switch)
    *2
    		Front view of wire harness connector
    (to ECM)

  1. Reconnect the clutch switch connector.



NG
Go to step 7
OK


4.REPLACE ECM

  1. Replace the ECM (Click here).



NEXT
Go to step 8

5.SECURELY REINSTALL CLUTCH SWITCH ASSEMBLY

  1. Securely reinstall the clutch switch assembly (Click here).



NEXT
Go to step 8

6.REPLACE CLUTCH SWITCH ASSEMBLY

  1. Replace the clutch switch assembly (Click here).



NEXT
Go to step 8

7.REPAIR OR REPLACE HARNESS OR CONNECTOR

NEXT


8.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

  1. Connect the intelligent tester to the DLC3.

  1. Clear the DTCs (Click here).

  1. Start the engine.

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

  1. Confirm that the DTC is not output again.


NEXT

END