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


PROBABLE CAUSES

OPERATION


The inhibitor switch detects the selector lever position (P, R, N, D) which the driver has selected, and sends the information to the A/T-ECU.

DIAGNOSIS CODE SET CONDITIONS


While driving at the vehicle speed of 30 km/h or more, if a status continues for 30 seconds with which all the signals from inhibitor switch are OFF (2 drive cycle), code No.P0707 is set.
PROBABLE CAUSES

DIAGNOSIS PROCEDURE

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

  • Refer to Data List Reference Table .

    1. Item 23: Inhibitor switch P
    2. Item 24: Inhibitor switch R
    3. Item 25: Inhibitor switch N
    4. Item 26: Inhibitor switch D

Q. Are the check results normal?
Go to Step 4.
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 5.

STEP 2. Check the inhibitor switch.
Refer to .

Q. Is the check result normal?
Go to Step 3.
Replace the inhibitor switch.

STEP 3. Check for open circuit and short circuit in power supply line between inhibitor switch connector and J/B connector terminal No.2.

Q. Is the check result normal?
Go to Step 4.
Repair the connector(s) or the wiring harness.

STEP 4. Check whether the diagnosis code is set again.
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 5. Check the inhibitor switch.
Refer to .

Q. Is the check result normal?
Go to Step 6.
Replace the inhibitor switch.

STEP 6. Check for open circuit, and short circuit in INHP, INHR, INHN, INHD line between inhibitor switch connector and A/T-ECU connector.

Q. Is the check result normal?
Go to Step 4.
Repair the connector(s) or the wiring harness.