Toyota Corolla Cross: System Description
SYSTEM DESCRIPTION
CXPI COMMUNICATION SYSTEM DESCRIPTION
(a) 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.)
HINT:
- 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 |
|
Headlight assembly RH*1 |
- |
Output function disabled |
|
Headlight assembly LH*1 |
- |
Output function disabled |
- *1: for LED Type Parking Light without AFS
LOAD OPERATION OUTPUT
(a) Controls the load on and off based on multiplex communication signals.
|
Load |
Power distribution box assembly |
Supports operation signal communication |
|---|---|---|
|
Rear Window Defogger |
○ |
Supported |
|
Back-up Light |
○ |
Supported |
|
Dome Cut |
○ |
Supported |
|
Tail Light |
○ |
Supported |
|
Seat Heater*1 |
○ |
Supported |
|
Front Fog Light*2 |
○ |
Supported |
|
Panel Illumination |
○ |
Supported |
|
Passenger Seat Buckle Switch Delegated Input |
○ |
Not supported |
|
Passenger Seat Occupant Detection Sensor Delegated Input |
○ |
Not supported |
|
Rear Seat RH Buckle Switch Delegated Input |
○ |
Not supported |
|
Rear Seat CTR Buckle Switch Delegated Input |
○ |
Not supported |
|
Rear Seat LH Buckle Switch Delegated Input |
○ |
Not supported |
|
IGR Relay*3 |
○ |
Not supported |
|
+BA Relay |
○ |
Not supported |
- *1: w/ Fog Light
- *2: w/ Seat Heater System
- *3: w/o Smart Key System
