Inspection Procedure 3: Even when the selector lever is in the P position, the ignition switch cannot be turned to the LOCK (OFF) position. /When the selector lever is in other than the P position, the ignition switch can be turned to the LOCK (OFF) position.


COMMENTS ON TROUBLE SYMPTOM



PROBABLE CAUSES



  • Steering lock solenoid malfunction
  • Selector lever assembly malfunction
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III other system service data



  • Turn the ignition switch to the ACC position, and check the ETACS-ECU service data.
Item No.
 Item name
 Normal condition
Item 288
 ACC switch
 ON
OK: Normal conditions are displayed for item.

Q. Is the check result normal?





STEP 2. Voltage measurement at selector lever assembly connector


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Turn the ignition switch from "ACC" position.
(3)Check the voltage between the selector lever assembly connector (power supply terminal) and body earth.
OK: System voltage

Q. Is the check result normal?





STEP 3. Check of short to power supply, short to earth, and open circuit in ACC1 line between selector lever assembly connector and ETACS-ECU connector


Q. Is the check result normal?





STEP 4. Resistance measurement at selector lever assembly connector.


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Measure the resistance between the selector lever assembly connector (earth terminal) and body earth.
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?





STEP 5. Check of open circuit in earth line between selector lever assembly connector and body earth.


Q. Is the check result normal?





STEP 6. Steering lock solenoid check



Q. Is the check result normal?





STEP 7. Resistance measurement at steering lock solenoid connector.


(1)Disconnect the connector, and measure at the wiring harness side.
(2)Measure the resistance between the steering lock solenoid connector (earth terminal) and body earth.
OK: Continuity exists (2 Ω or less)

Q. Is the check result normal?





STEP 8. Check of open circuit in earth line between steering lock solenoid connector and body earth.


Q. Is the check result normal?





STEP 9. Check of short to power supply, short to earth, and open circuit in signal line between selector lever assembly connector and steering lock solenoid connector.


Q. Is the check result normal?





STEP 10. Retest the system



Q. Is the check result normal?