Problem Symptoms Table [09/2012 - ]
HINT:
Use the table below to help determine the cause of the problem symptom. 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.
STEERING LOCK SYSTEM
| Symptom | Suspected Area | Refer to |
|---|---|---|
| Steering wheel cannot unlock (engine cannot start). | Smart access system with push-button start | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2012 - ] |
| Main body ECU | Refer to TERMINALS OF ECU [09/2012 - ] | |
| Certification ECU | Refer to TERMINALS OF ECU [09/2012 - ] | |
| Power source circuit | Refer to Power Source Circuit | |
| Steering lock motor drive power circuit | Refer to Steering Lock Motor Drive Power Circuit | |
| Steering lock actuator (Steering lock ECU) | Refer to TERMINALS OF ECU [09/2012 - ] | |
| Unlock position sensor signal circuit | Refer to Unlock Position Sensor Signal Circuit | |
| Refer to "Unable to Unlock steering Wheel". | Refer to Unable to Unlock Steering Wheel | |
| Steering wheel cannot unlock (after connecting Techstream to DLC3, starting engine, Data List certification ECUs item Lock/Unlock Receive data is read, and steering lock command reception records display is NO). | Smart access system with push-button start | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2012 - ] |
| Main body ECU | Refer to TERMINALS OF ECU [09/2012 - ] | |
| Certification ECU | Refer to TERMINALS OF ECU [09/2012 - ] | |
| ID code box | - | |
| LIN communication line | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2012 - ] | |
| Steering wheel cannot lock. | Smart access system with push-button start | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2012 - ] |
| Main body ECU | Refer to TERMINALS OF ECU [09/2012 - ] | |
| Certification ECU | Refer to TERMINALS OF ECU [09/2012 - ] | |
| Power source circuit | Refer to Power Source Circuit | |
| Steering lock motor drive power circuit | Refer to Steering Lock Motor Drive Power Circuit | |
| Steering lock actuator (Steering lock ECU) | Refer to TERMINALS OF ECU [09/2012 - ] | |
| Steering wheel cannot lock (after connecting Techstream to DLC3, starting engine, Data List certification ECUs item Lock/Unlock Receive data is read, and steering lock command reception records display is NO). | Smart access system with push-button start | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2012 - ] |
| Main body ECU | Refer to TERMINALS OF ECU [09/2012 - ] | |
| Certification ECU | Refer to TERMINALS OF ECU [09/2012 - ] | |
| ID code box | - | |
| LIN communication line | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2012 - ] |