Problem Symptoms Table [08/2014 - ]
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
STEERING LOCK SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| Steering wheel cannot unlock (engine cannot start). | Steering lock actuator assembly (Steering lock ECU) | Refer to TERMINALS OF ECU [08/2014 - ] |
| Main body ECU | Refer to TERMINALS OF ECU [08/2014 - ] | |
| Certification ECU (Smart key ECU assembly) | Refer to TERMINALS OF ECU [08/2014 - ] | |
| Smart key system (for start function) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] | |
| Steering lock motor drive power circuit | Refer to Steering Lock Motor Drive Power Circuit [08/2014 - ] | |
| Unlock position sensor signal circuit | Refer to Unlock Position Sensor Signal Circuit [08/2014 - ] | |
| Steering wheel cannot unlock (after connecting the Techstream to DLC 3, starting engine, Data List steering lock system item Lock/Unlock Receive data is read, and steering lock command reception records display is NO). | Main body ECU | Refer to TERMINALS OF ECU [08/2014 - ] |
| Certification ECU (Smart key ECU assembly) | Refer to TERMINALS OF ECU [08/2014 - ] | |
| ID code box (Immobiliser code ECU) | Refer to TERMINALS OF ECU [08/2014 - ] | |
| LIN communication line | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] | |
| Smart key system (for start function) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] | |
| Steering wheel cannot lock. | Steering lock actuator assembly (Steering lock ECU) | Refer to TERMINALS OF ECU [08/2014 - ] |
| Main body ECU | Refer to TERMINALS OF ECU [08/2014 - ] | |
| Certification ECU (Smart key ECU assembly) | Refer to TERMINALS OF ECU [08/2014 - ] | |
| Smart key system (for start function) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] | |
| Steering lock motor drive power circuit | Refer to Steering Lock Motor Drive Power Circuit [08/2014 - ] | |
| Power source circuit | Refer to Power Source Circuit [08/2014 - ] | |
| Steering wheel cannot lock (after connecting the Techstream to DLC 3, starting engine, Data List steering lock system item Lock/Unlock Receive data is read, and steering lock command reception records display is NO). | Main body ECU | Refer to TERMINALS OF ECU [08/2014 - ] |
| Certification ECU (Smart key ECU assembly) | Refer to TERMINALS OF ECU [08/2014 - ] | |
| ID code box (Immobiliser code ECU) | Refer to TERMINALS OF ECU [08/2014 - ] | |
| LIN communication line | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] | |
| Smart key system (for start function) | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2014 - ] |