Tech Tips
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.
| Symptom | Suspected Area | See page |
|---|---|---|
| Unable to register the key. | Front door courtesy switch | |
| Wire harness or connector | - | |
| Transponder key ECU assembly | - | |
| Engine does not start. | Key | |
| ECU power source circuit | ||
| SFI system | ||
| Transponder key ECU assembly | - | |
| Security indicator light is always ON. | Security indicator light circuit | |
| Wire harness or connector | - | |
| Transponder key ECU assembly | - | |
| Security indicator light is OFF. | Security indicator light circuit | |
| Wire harness or connector | - | |
| Transponder key ECU assembly | - | |
| Security indicator light is blinking abnormally. | Transponder key ECU assembly | - |
| Engine immobiliser system DTCs are not output. | Wire harness or connector | |
| Transponder key ECU assembly | - |