|
|
IGNITION SWITCH <Vehicles without keyless operation system> CHASSIS ELECTRICAL 54A-17 Inspection Procedure 3: Even when the selector lever is in the P position, the ignition switch cannot COMMENTS ON TROUBLE SYMPTOM The mechanical steering lock controls the steering 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 • Item No. Item name Normal Item 288 ACC switch ON Turn the ignition switch to the ACC position, and OK: Normal conditions are displayed for Q: Is the check result normal? YES : Go to Step 2. NO : Troubleshoot the ETACS-ECU. Refer to . STEP 2. Voltage measurement at selector lever wiring harness side. (2) Turn the ignition switch from "ACC" position. assembly connector (power supply terminal) and OK: System voltage Q: Is the check result normal? YES : Go to Step 4. NO : Go to Step 3. STEP 3. Check of short to power supply, short to Q: Is the check result normal? YES : The trouble can be an intermittent malfunction (Refer to GROUP 00 − How to use Troubleshooting/inspection Service − How to Cope with Intermittent Malfunction ). NO : Repair the connector(s) or wiring harness. STEP 4. Resistance measurement at selector wiring harness side. (2) Measure the resistance between the selector lever assembly connector (earth terminal) and OK: Continuity exists (2 Ω or less) Q: Is the check result normal? YES : Go to Step 6. NO : Go to Step 5. STEP 5. Check of open circuit in earth line Q: Is the check result normal? YES : The trouble can be an intermittent malfunction (Refer to GROUP 00 − How to use Troubleshooting/inspection Service − How to Cope with Intermittent Malfunction ). NO : Repair the connector(s) or wiring harness. STEP 6. Steering lock solenoid check − Steering column shaft assem- bly . Q: Is the check result normal? YES : Go to Step 7. NO : Replace the steering lock solenoid. STEP 7. Resistance measurement at steering wiring harness side. |