Lexus IS250 IS220d GSE20 ALE20 - SEAT
FRONT POWER SEAT CONTROL SYSTEM (w/o Seat Position Memory System) - PROBLEM SYMPTOMS TABLE
- HINT:
Inspect the fuses and relays before confirming the suspected areas in the table below.
Inspect each suspected area in numerical order for the corresponding symptom.
| Symptom | Suspected area | See page |
| Power seat does not operate (slide, front vertical, lifter, reclining). | 1. Fuse | - |
| 2. Power seat switch | ||
| 3. Wire harness or connector | - | |
| Slide operation function only does not operate. | 1. Power seat switch | |
| 2. Front seat frame with adjuster (slide motor) | ||
| 3. Wire harness or connector | - | |
| Front vertical operation function only does not operate. | 1. Power seat switch | |
| 2. Front seat frame with adjuster (front vertical motor) | ||
| 3. Wire harness or connector | - | |
| Lifter operation function only does not operate. | 1. Power seat switch | |
| 2. Front seat frame with adjuster (lifter motor) | ||
| 3. Wire harness or connector | - | |
| Reclining operation function only does not operate. | 1. Power seat switch | |
| 2. Front seat frame with adjuster (reclining motor) | ||
| 3. Wire harness or connector | - | |
| Lumbar support operation function only does not operate. | 1. Front power seat lumbar switch | |
| 2. Lumbar support adjuster assembly | ||
| 3. Wire harness or connector | - |
| Symptom | Suspected area | See page |
| Power seat does not operate (slide, front vertical, lifter, reclining). | 1. Fuse | - |
| 2. Power seat switch | ||
| 3. Wire harness or connector | - | |
| Slide operation function only does not operate. | 1. Power seat switch | |
| 2. Front seat frame with adjuster (slide motor) | ||
| 3. Wire harness or connector | - | |
| Front vertical operation function only does not operate. | 1. Power seat switch | |
| 2. Front seat frame with adjuster (front vertical motor) | ||
| 3. Wire harness or connector | - | |
| Lifter operation function only does not operate. | 1. Power seat switch | |
| 2. Front seat frame with adjuster (lifter motor) | ||
| 3. Wire harness or connector | - | |
| Reclining operation function only does not operate. | 1. Power seat switch | |
| 2. Front seat frame with adjuster (reclining motor) | ||
| 3. Wire harness or connector | - | |
| Lumbar support operation function only does not operate. | 1. Front power seat lumbar switch | |
| 2. Lumbar support adjuster assembly | ||
| 3. Wire harness or connector | - |