Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
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
Smart Access System with Push-button Start
NORMAL CONDITION CHART
| Symptom | Suspected Area | See |
|---|---|---|
| Power Source Mode does not Change | AM2 Fuse | POWER SOURCE MODE DOES NOT CHANGE |
| Engine Switch | - | |
| Main Body ECU RH (Cowl Side Junction Block RH) | - | |
| Main Body ECU LH (Cowl Side Junction Block LH) | - | |
| IG2 Relay | - | |
| Wire Harness or Connector | - | |
| Power Source Control ECU | - | |
| Engine does not Start | Power Source Control ECU | ENGINE DOES NOT START |
| Certification ECU (Smart Key ECU Assembly) | - | |
| Shift Lock Control ECU | - | |
| ID Code Box (Immobilizer Code ECU) | - | |
| Stop Light Switch | - | |
| Electrical Steering Lock Function | - | |
| SFI System | - | |
| Engine Immobilizer System | - | |
| Wire Harness or Connector | - | |
| Engine Switch Indicator Light does not Come On | Engine switch indicator light circuit | ENGINE SWITCH INDICATOR CIRCUIT |