CXPI COMMUNICATION SYSTEM DESCRIPTION
The multiplex communication system [CXPI] is used for communication systems between body system components. When communication fails due to an open circuit, etc. on the communication line, the function that outputs a DTC related to the circuit according to the control master ECU and the fail-safe function that maintains minimum performance and protects the system activate. (The following shows the communication system and connected ECUs.)
Each component has a fail-safe function which activates to maintain the minimum performance of the system and protect the system.
In the following table, "○" indicates that the function applies, and "-" indicates that it does not.
| Component | Master Control | CXPI Communication DTC Output Function |
|---|---|---|
| Main body ECU (multiplex network body ECU) | ○ | Output function enabled |
| Power distribution box assembly | - | Output function disabled |
| Windshield wiper relay assembly | - | Output function disabled |
LOAD OPERATION OUTPUT
Controls the load on and off based on multiplex communication signals.
| Load | Power distribution box assembly | Supports operation signal communication |
|---|---|---|
| Rear window defogger | ● | Supported |
| Mirror heater | ● | Supported |
| Rear taillight | ● | Supported |
| Rear fog light* | ● | Supported |
| Back-up light | ● | Not supported |
| Outer rear view mirror assembly RH (outer mirror retractor RH) | ● | Supported |
| Outer rear view mirror assembly LH (outer mirror retractor LH) | ● | Supported |
| Panel light | ● | Supported |
| Front fog light relay | ● | Supported |
*: w/ Rear Fog Light