FUNCTION
| Main Body ECU (Multiplex Network Body ECU) | No. 1 Semiconductor Power Integration ECU |
| No. 2 Semiconductor Power Integration ECU* | No. 3 Semiconductor Power Integration ECU |
| Map Light Assembly | - |
*: Models with PTC heater
DIAGNOSIS
If a malfunction occurs on a CXPI 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.