When a setting assignment using the multi-display is performed, the entry and start system (for Start Function), audio and visual system*1, *2 and navigation system*1, *3 will use the device when performing a search. If detected, settings can be assigned. If there is no detection, it is suspected that the radio and display receiver assembly or each system is malfunctioning.
*1: for Vehicles which display the assigned settings of Bluetooth devices on the multi-display
*2: w/ Audio and Visual System
*3: w/ Navigation System
Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.
Check the problem symptoms.
| Result | Proceed to |
|---|---|
| Assignment of settings cannot be performed using the electrical key transmitter sub-assembly | A |
| Assignment of settings cannot be performed using the Bluetooth device*1 | B |
*1: for Vehicles which display the assigned settings of Bluetooth devices on the multi-display
A
B
Check the smart entry and start system (for Start Function).
Smart Entry and Start System (for Start Function) is normal
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Temporarily replace the main body ECU (multiplex network body ECU) with a new one.
Check if settings can be assigned again to an electrical key transmitter sub-assembly.
All of the electrical key transmitter sub-assemblies could be registered to the new certification ECU (smart key ECU assembly) successfully.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check if settings can be assigned again to an electrical key transmitter sub-assembly.
Settings can be assigned
| Result | Proceed to |
|---|---|
| OK (w/ Navigation System) | A |
| OK (w/o Navigation System) | B |
| NG | C |
A
B
C