Terminal and Connector Inspection
Check for Wiring Harness
1.

Check for damaged harness and terminals including rubber seals :

-. contact resistance, oxidation, corrosion, bent or broken terminals

-. harness connector connection, loose wires etc.

2.

Check for poor connection between ECM and component :

-. backed out terminal, improper mating, broken locks and poor terminal to wire connection

3.

ARE THE WIRES O.K ? & ARE THE CONNECTIONS O.K ?

YES

a.

Go to "Signal Circuit Inspection" procedure

NO

a.

Repair as necessary and go to " Verification of Vehicle Repair " procedure

Signal Circuit Inspection
Problem Verification
1.

DTCs listed below is stored in the scan tool

P0704

2.

Check items with the scan tool and the multimeter

① Wiring harness inspection

② Check the fuse

③ Check the clutch switch

3.

Specification

1)

Resitance : below 1 Ω for open in the wire

2)

Resitance : infinite for short to ground in the wire

3)

Voltage : below 0.5V for short to power in the wire

4)

Battery voltage : Approx. 12V

note

Refer to the component and full circuit for connector configrations details

P0704 Clutch Switch - MAL(Range / Performance)
4.

Disconnect the clutch switch and turn the ignition switch ON, measure the voltage between the clutch switch terminal 1 and the clutch switch terminal 2.

5.

IS THERE A BATTERY VOLTAGE ?

YES

a.

Go to step 5

NO

a.

Repair open or short in the wire between the clutch switch terminal 1 and the ECM terminal 61/C230-1.

b.

Repair open or short in the wire between the clutch switch terminal 2 and the body ground.

c.

Go to step 3

6.

Check the voltage at the ECM terminal 61/C230-1 directly.

7.

IS THERE A BATTERY VOLTAGE ?

YES

a.

Repair open or short in the wire between the clutch switch terminal 1 and the ECM terminal 61/C230-1

b.

Go to step 5

NO

a.

Replace a known - good ECM and recheck. If approx. 12V is checked, replace the ECM.

b.

Go to step 5

8.

Connect the clutch switch and check the votage at the clutch switch terminal 1 when pressing the clutch pedal.

9.

IS THERE 0 V ?

YES

a.

Go to "Verification of Vehicle Repair" procedure

NO

a.

Repair open in the wire between the clutch s/w terminal 2 and the body ground

b.

Replace the clutch switch for checking the brake s/w, Go to "Component Inspection" procedure

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