Inspection Procedure 3

When the Clutch Pedal is Depressed, Auto-cruise Control is not Cancelled.

Clutch Pedal Position Switch Circuit Part 1:

Clutch Pedal Position Switch Circuit Part 2:

CIRCUIT OPERATION
This circuit indicates the operation status of the clutch pedal position switch. When the clutch pedal position switch is ON (clutch pedal is depressed), the voltage of auto-cruise control-ECU terminal number 13 will indicate 0 volt.

TECHNICAL DESCRIPTION (COMMENT)
The cause is probably a malfunction of the clutch pedal position switch circuit.

TROUBLESHOOTING HINTS
- Malfunction of the clutch pedal position switch.
- Damaged harness or connector.
- Malfunction of the auto-cruise control-ECU.

DIAGNOSIS

STEP 1. Check the clutch pedal position switch.

1. Disconnect clutch pedal position switch connector C-01.







2. Measure the continuity between the terminals.

Q: Is the continuity meet the table above?

YES: Go to Step 2.

NO: Replace the clutch pedal position switch. Refer to Clutch. Then check that the malfunction is eliminated.

STEP 2. Check the output circuit voltage at auto-cruise control-ECU connector C-20 (terminal number 13) by backprobing.

1. Do not disconnect auto-cruise control switch connector C-20.
2. Turn the ignition switch to the "ON" position.




3. Measure the voltage between terminal 13 and ground by backprobing.
- Voltage should be 0.5 volts or less. (When clutch pedal is depressed.)
- Voltage should be battery positive voltage. (When clutch pedal is not depressed.)

4. Turn the ignition switch to the "LOCK" (OFF) position.

Q: Is the voltage within specifications?

YES: Check that the malfunction is eliminated. If the malfunction is not eliminated, replace the auto-cruise control-ECU. Then check that the malfunction is eliminated.

NO: Go to Step 3.










STEP 3. Check clutch pedal position switch connector C-01, auto-cruise control-ECU connector C-20 and intermediate connector C-89.

Q: Is any connector damaged?

YES: Repair or replace connector. Refer to Harness Connector Inspection. Then check that the malfunction is eliminated.

NO: Go to Step 4.







STEP 4. Check the harness wire between clutch pedal position switch connector C-01 (terminal number 2) and auto-cruise control-ECU connector C-20 (terminal number 13).

Q: Is any harness wire between clutch pedal position switch connector C-01 (terminal number 2) and auto-cruise control-ECU connector C-20 (terminal number 13) damaged?

YES: Repair the harness wire and then check that the malfunction is eliminated.

NO: Go to Step 5.




STEP 5. Check the harness wire between clutch pedal position switch connector C-01 (terminal number 1) and ground wire.

Q: Is any harness wire between clutch pedal position switch connector C-01 (terminal number 1) and ground wire damaged?

YES: Repair the harness wire and then check that the malfunction is eliminated.

NO: Check that the malfunction is eliminated. If the malfunction is not eliminated, replace the auto-cruise control-ECU. Then check that the malfunction is eliminated.