Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Wiper And Washer. Lexus Gs430, Gs300. Uzs190 Grs190
Wiper And Washer System -- System Diagram |

Transmitting ECU (Transmitter) | Receiving ECU | Signals | Communication |
Rain Sensor | Cowl Side Junction Block ECU LH |
| BEAN |
Combination Switch ECU | Cowl Side Junction Block ECU LH |
| BEAN |
Combination Switch ECU | Front Controller |
| BEAN |
Combination Meter ECU | Cowl Side Junction Block ECU LH |
| BEAN |
Combination Meter ECU | Rain Sensor |
| BEAN |
Combination Switch ECU | Rain Sensor |
| BEAN |
Combination Switch ECU | Door ECU RH Door ECU LH |
| BEAN |
ECM | Cowl Side Junction Block ECU LH |
| CAN - BEAN |
Cowl Side Junction Block ECU RH | Cowl Side Junction Block ECU LH |
| BEAN |
Cowl Side Junction Block ECU RH | Combination Switch ECU |
| BEAN |
Cowl Side Junction Block ECU RH | Rain Sensor |
| BEAN |
Cowl Side Junction Block ECU LH | Rain Sensor |
| BEAN |
Steering Lock ECU | Rain Sensor |
| BEAN |
Front Controller | Combination Meter ECU |
| BEAN |
- HINT:
- Wiper operation is controlled by the cowl side junction block ECU LH.
- The rain sensor controls the auto wiper function.