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

a.

Resitance : below 1 Ω for open in the wire

b.

Resitance : infinite for short to ground in the wire

c.

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

d.

Battery voltage : Approx. 12V

caution

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.

caution

To be sure the brake switch terminal number, in according to the with or without the cruise control system, go to "Component Inspection" procedure

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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