Figure 1. Headlight Bus
| *1 | Headlight ECU Sub-assembly LH |
| *2 | Headlight ECU Sub-assembly RH |
Figure 2. Air Conditioning Bus
Figure 3. Door Bus 1
Figure 4. Door Bus 2
Figure 5. Seat Bus (Front LH)
Figure 6. Seat Bus (Front RH)
Figure 7. Seat Bus (Rear) (Models with Rear Power Seat System)
Figure 8. Certification Bus
| *1 | Certification ECU (Smart Key ECU Assembly) |
| *2 | Steering Lock ECU |
| *3 | ID Code Box (Immobilizer Code ECU) |
Figure 9. Wiper Bus
| *1 | Main Body ECU (Multiplex Network Body ECU) |
| *2 | Rain Sensor |
| *3 | Windshield Wiper Motor Assembly |
Figure 10. Charging Bus
| *1 | Hybrid Vehicle Control ECU Assembly |
| *2 | Battery State Sensor Assembly |
| *3 | Compressor with Motor Assembly |
Figure 11. Steering Vibration Bus (Models with Lexus Safety System + or Lexus Safety System +A)