Code No.P0707: Inhibitor switch system (Open circuit)




















OPERATION




DIAGNOSIS CODE SET CONDITIONS




PROBABLE CAUSES
  • Malfunction of the inhibitor switch
  • Damaged harness wires and connectors
  • Malfunction of the A/T-ECU

DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III data list


Item 34: Inhibitor switch (Refer to data list reference table ).

Q. Is the check result normal?

Go to Step 6.
NO <none of the selector lever positions are displayed on M.U.T.-III> : Go to Step 2.
NO <only one of the selector lever positions is not displayed on M.U.T.-III> : Go to Step 7.

STEP 2. Connector check: C-05 Inhibitor switch connector.


Check for the contact with terminals.

Q. Is the check result normal?

Go to Step 3.
Repair the defective connector.

STEP 3. Check the inhibitor switch.


Refer to .

Q. Is the check result normal?

Go to Step 4.
Replace the inhibitor switch.

STEP 4. Connector check: D-401 J/B connector, D-225 and D-229 intermediate connector


Check for the contact with terminals.

Q. Is the check result normal?

Go to Step 5.
Repair the defective connector.

STEP 5. Check the harness between inhibitor switch connector C-05 terminal No.3 and J/B connector D-401 terminal No.12.


Check the power supply line for open and short circuit.

Q. Is the check result normal?

Go to Step 6.
Repair the wiring harness.

STEP 6. Check whether the diagnosis code is reset.


Check again if the diagnosis code is set.

Q. Is diagnosis code No.P0707 set?

Replace the A/T-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).

STEP 7. Connector check: C-05 inhibitor switch connector.


Check for the contact with terminals.

Q. Is the check result normal?

Go to Step 8.
Repair the defective connector.

STEP 8. Check the inhibitor switch.


Refer to .

Q. Is the check result normal?

Go to Step 9.
Replace the inhibitor switch.

STEP 9. Connector check: D-139 A/T-ECU connector, D-225 intermediate connector.


Check for the contact with terminals.

Q. Is the check result normal?

Go to Step 10.
Repair the defective connector.

STEP 10. Check the harness between inhibitor switch connector C-05 terminal No.8, 4, 5, 7 and A/T-ECU connector D-139 terminal No.54, 55, 46, 47.


Check the output line for open and short circuit.

Q. Is the check result normal?

Go to Step 6.
Repair the wiring harness.