The main body ECU (multiplex network body ECU) receives switch signals from the multiplex network master switch assembly via LIN communication system. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.
The power door lock control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power door lock control system after confirming that the communication systems are functioning properly.
If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.*1
*1: w/ Smart Entry and Start System
Check the power window operation using the multiplex network master switch assembly.
Each power window operates normally.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Door Lock Switch Status | Multiplex network master switch assembly lock signal | OFF or ON | OFF: Lock side of multiplex network master switch assembly not pushed
ON: Lock side of multiplex network master switch assembly pushed |
- |
| Door Unlock Switch Status | Multiplex network master switch assembly unlock signal | OFF or ON | OFF: Unlock side of multiplex network master switch assembly not pushed
ON: Unlock side of multiplex network master switch assembly pushed |
- |
| Tester Display |
|---|
| Door Lock Switch Status |
| Door Unlock Switch Status |
On the GTS screen, ON or OFF is displayed for each item according to the table above.
| Proceed to |
|---|
| OK |
| NG |
OK
NG