FUNCTION
| Central Gateway ECU (Network Gateway ECU) | Forward Recognition Camera*1 |
| Millimeter Wave Radar Sensor Assembly*1 | Blind Spot Monitor Sensor RH*2 |
| Rear Television Camera Assembly*3 | Clearance Warning ECU Assembly*4 |
| ECM | Radio and Display Receiver Assembly*5 |
| Occupant Detection ECU*6 | Tire Pressure Warning ECU and Receiver*7 |
| Power Steering ECU (Rack and Pinion Power Steering Gear Assembly) | Skid Control ECU (Brake Actuator Assembly) |
| Steering Sensor | Airbag Sensor Assembly |
| Headlight ECU Sub-assembly RH*8 | Outer Mirror Control ECU Assembly RH*9 |
| Position Control ECU Assembly LH*10 | Position Control ECU Assembly RH*11 |
| Outer Mirror Control ECU Assembly LH*9 | Air Conditioning Amplifier Assembly |
| Main Body ECU (Multiplex Network Body ECU) | Certification ECU (Smart Key ECU Assembly)*12 |
| Headup Display (Meter Mirror Sub-assembly)*13 | Headlight ECU Sub-assembly LH*8 |
| Multiplex Tilt and Telescopic ECU*14 | Combination Meter Assembly |
| Accessory Gateway ECU (Network Gateway ECU)*15 | Television Camera Controller*16 |
| Telematics Transceiver (Data Communication Module)*17 | - |
*1: Models with Toyota safety sense
*2: Models with blind spot monitor system
*3: Models with parking assist monitor system or panoramic view monitor system
*4: Models with TOYOTA parking assist-sensor system
*5: Models with radio and display receiver assembly
*6: Models with occupant classification system
*7: Models with tire pressure warning system (for tire inflation pressure display function)
*8: Models with automatic headlight beam level control system
*9: Models with seat position memory system
*10: LHD Models with seat position memory system
*11: RHD Models with seat position memory system
*12: Models with smart entry and start system
*13: Models with headup display system
*14: Models with power tilt and power telescopic system
*15: Models with accessory gateway ECU
*16: Models with panoramic view monitor system
*17: Models with manual (SOS) switch
DIAGNOSIS
If a malfunction occurs on a CAN communication bus, ECUs that are connected to the CAN communication bus store Diagnostic Trouble Codes (DTCs) in memory.
The 5-digit DTCs can be read by connecting the Global TechStream (GTS) to the DLC3.
For details, refer to the Repair Manual.