When a key switch is pushed: 1) the door control receiver receives the wireless door lock signal; 2) the door control receiver sends a signal to the main body ECU (multiplex network body ECU) through the certification ECU (smart key ECU assembly); 3) the main body ECU (multiplex network body ECU) sends the operation permission signal to the power window regulator motor assemblies; and 4) the power window regulator motor assemblies are activated.
When the driver door key cylinder (key linked switch) is turned and held: 1) the door lock motor receives the signal; 2) the main body ECU (multiplex network body ECU) sends the signal to the power window regulator motor assemblies; and 3) the power window regulator motor assemblies are activated.
These functions are set through customize settings, as they are off by default.
The power window control system uses the LIN communication system and CAN communication system. Inspect the communication functions by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication systems are functioning properly.
Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.*
*: w/ Smart Entry and Start System
Check that the wireless door lock / unlock function operates normally.
Check that the key-linked lock/unlock function operates normally.
| Result | Proceed to |
|---|---|
| Wireless door lock/unlock function and key-linked lock/unlock function operate normally | A |
| Wireless door lock/unlock function does not operate normally | B |
| Key-linked lock/unlock function does not operate normally | C |
A
B
w/o Smart Entry and Start System: Click hereVehicle Interior>DOOR LOCK>WIRELESS DOOR LOCK CONTROL SYSTEM (w/o Smart Entry and Start System)>PROBLEM SYMPTOMS TABLE202201,999999,_58,_115226,_0510942,RM1000000020BTW,
w/ Smart Entry and Start System: Click hereVehicle Interior>DOOR LOCK>WIRELESS DOOR LOCK CONTROL SYSTEM (w/ Smart Entry and Start System)>PROBLEM SYMPTOMS TABLE202201,202307,_58,_115226,_0510941,RM1000000020BTK,202307,999999,_58,_115226,_0510941,RM100000002C71R,
C
Check that the manual up and down functions using the multiplex network master switch assembly, power window regulator switch assembly and rear power window regulator switch assemblies can operate all of the power windows.
Manual up and down functions are normal.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check that the remote up and down functions using the multiplex network master switch assembly can operate all of the power windows.
Remote up and down functions are normal.
| Proceed to |
|---|
| OK |
| NG |
OK
NG