Lexus IS250 IS220d GSE20 ALE20 2AD-FHV STARTING
ENTRY AND START SYSTEM - PROBLEM SYMPTOMS TABLE
- 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.
| Symptom | Suspected area | See page |
| Power does not turn on (neither ACC nor IG is possible). | 1. AM2 Fuse | |
| 2. Engine Switch | - | |
| 3. Cowl Side J/B RH | - | |
| 4. Cowl Side J/B LH | - | |
| 5. IG2 Relay | - | |
| 6. Wire Harness or Connector | - | |
| 7. Power Source Control ECU | - | |
| 8. Certification ECU | - | |
| 9. ID Code Box | - | |
| 10. Steering Lock ECU | - | |
| 11. Entry and Start System | - | |
| Power is not turned on (only ACC is not turned on). | 1. AM2 Fuse | |
| 2. Cowl Side J/B RH | - | |
| 3. Wire Harness or Connector | - | |
| 4. Power Source Control ECU. | - | |
| Power is not turned on (only IG is not turned on). | 1. AM2 Fuse | |
| 2. Cowl Side J/B RH | - | |
| 3. Cowl Side J/B LH | - | |
| 4. IG2 Relay | - | |
| 5. Wire Harness or Connector | - | |
| 6. Power Source Control ECU | - | |
| Engine does not start. | 1. Power Source Control ECU | |
| 2. Certification ECU | - | |
| 3. ID Code Box | - | |
| 4. Electrical Steering Lock Function | - | |
| 5. SFI System | - | |
| 6. Engine Immobiliser System | - | |
| 7. Steering Lock ECU | - | |
| 8. Wire Harness or Connector | - | |
| Engine switch indicator light does not come on. | Engine switch indicator light circuit |
LEXUS IS250, IS220d / GSE20 ALE20