Problem Symptoms Table
WARNING: This page is about a different car, the 2010 Lexus GS 460. 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 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.
- Inspect the fuses and relays related to the system before inspecting the suspected areas below.
PUSH-BUTTON START
| Symptom | Suspected Area | See |
|---|---|---|
| Power Source Mode does not Change | B2271 | Refer to DTC B2271: Ignition Hold Monitor Malfunction |
| B2272 | Refer to DTC B2272: Ignition 1 Monitor Malfunction | |
| B2273 | Refer to DTC B2273: Ignition 2 Monitor Malfunction | |
| B2274 | Refer to DTC B2274: ACC Monitor Malfunction | |
| B2278 | Refer to DTC B2278: Engine Switch Circuit Malfunction | |
| Engine Switch Indicator Circuit | Refer to Engine Switch Indicator Circuit | |
| Room Oscillator does not Recognize Key | Refer to Room Oscillator does not Recognize Key | |
| Engine Switch | Refer to INSPECTION | |
| Key | Refer to INSPECTION | |
| Immobiliser code ECU | - | |
| Power Source Control ECU | - | |
| Wire Harness or connector | Refer to Power Source Mode does not Change | |
| Engine does not Start | DTC for Push-button Start Function | Refer to DIAGNOSTIC TROUBLE CODE CHART |
| Power Source Mode does not Change | Refer to Power Source Mode does not Change | |
| Engine Immobiliser System | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Steering Lock System | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| SFI System | Refer to HOW TO PROCEED WITH TROUBLESHOOTING | |
| Engine Switch | Refer to INSPECTION | |
| Power Source Control ECU | - | |
| Wire Harness or connector | Refer to Engine does not Start |