Lexus IS250 IS220d GSE20 ALE20 - WINDSHIELD / WINDOWGLASS
POWER WINDOW CONTROL SYSTEM - PROBLEM SYMPTOMS TABLE
| Symptom | Suspected area | See page |
| Power window does not operate with multiplex network master switch operation | 1. ECU-B, ECU-IG, PWR fuse | - |
| 2. Multiplex network master switch circuit (power source) | ||
| 3. Power window regulator motor circuit | ||
| 4. Multiplex network master switch | - | |
| Front passenger side power window does not operate with multiplex network switch operation | 1. PWR fuse | - |
| 2. Multiplex network switch circuit (power source) | ||
| 3. Power window regulator motor circuit (front passenger side) | ||
| 4. Multiplex network switch (front passenger side) | - | |
| Rear LH side power window does not operate with multiplex network switch operation | 1. PWR fuse | - |
| 2. Multiplex network switch circuit (power source) | ||
| 3. Power window regulator motor circuit (rear LH side) | ||
| 4. Multiplex network switch (rear LH side) | - | |
| Rear RH side power window does not operate with multiplex network switch operation | 1. PWR fuse | - |
| 2. Multiplex network switch circuit (power source) | ||
| 3. Power window regulator motor circuit (rear RH side) | ||
| 4. Multiplex network switch (rear RH side) | - | |
| AUTO UP/DOWN function does not operate on driver side | 1. Diagnosis check | |
| 2. Power window regulator motor reset | ||
| 3. Multiplex network master switch | - | |
| 4. Wire harness | - | |
| AUTO UP/DOWN function does not operate on any door side except driver side | 1. Diagnosis check | |
| 2. Power window regulator motor reset | ||
| 3. Multiplex network master switch | - | |
| 4. Wire harness | - | |
| Remote UP/DOWN function does not operate | 1. DATA LIST/ACTIVE TEST | |
| 2. Multiplex network master switch | - | |
| 3. Multiplex network body ECU | - | |
| 4. Wire harness | - | |
| Power window can be operated after engine switch is turned off even if operated conditions are not met | 1. Front door courtesy switch | |
| 2. Wire harness | - | |
| AUTO UP operation does not fully close power window (Jam protection function is activated) | 1. Power window regulator motor reset | |
| 2. Check & clean glass run | - | |
| 3. Multiplex network master switch | - |
LEXUS IS250, IS220d / GSE20 ALE20