Code No. P0705: Inhibitor Switch System


DIAGNOSIS CODE SET CONDITIONS


When the battery voltage is 2 V or more

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. Check the A/T-ECU terminal voltage.
[A/T-ECU connector (harness side, connected)]
Turn ON the ignition switch, and check by shifting to each range.

  • "P" range: INHP terminal to body earth → System voltage
  • "R" range: INHR terminal to body earth → System voltage
  • "N" range: INHN terminal to body earth → System voltage
  • "D" range: INHD terminal to body earth → System voltage
  • "L" range: INHL terminal to body earth → System voltage

Q. Is the check result normal?
Go to Step 6.
Go to Step 2.

STEP 2. Check the path between the battery and the inhibitor switch.
Turn OFF the ignition switch, and check the following items.

  • Open/short circuit of power supply line between the battery and inhibitor switch connector.
  • Blown fuse

Q. Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.

STEP 3. Check for continuity in INHP, INHR, INHN, INHD, INHL line between the inhibitor switch connector and the A/T-ECU connector.
When the continuity check result is OK, check that the wiring harness is not shorted to the body and other wiring harness.

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

STEP 4. Check the inhibitor switch as a single unit.
Refer to .

Q. Is the check result normal?
Go to Step 5.
Go to Step 7.

STEP 5. Check the A/T-ECU connector pin terminal and the connection status.

Q. Is there a failure point?
Repair or replace the failure section.
Replace the A/T-ECU.

STEP 6. Erase the diagnosis code, and drive the vehicle for a while.
Check that the normal code is displayed.

Q. Is the check result normal?
The procedure is complete.
Replace the A/T-ECU.

STEP 7. Adjust the inhibitor switch.
Refer to .
After adjustment, check the continuity between the terminals again.

Q. Is the check result normal?
Go to Step 8.
Replace the inhibitor switch.

STEP 8. Erase the diagnosis code, and drive the vehicle for a while.
Check that the normal code is displayed.

Q. Is the check result normal?
The procedure is complete.
Return to Step 1.