Note
If the main body ECU (multiplex network body ECU) is replaced, refer to the Service Bulletin.
Perform the initialization procedure and stored memory will be reset.
Before inspecting parts for malfunctions, inspect the fuses and relays of related systems.
Tech Tips
After replacing the position control ECU assembly, seat assembly and parts (including removal and installation), initialize the position control ECU assembly.
| Symptom | Suspected Area | Link |
|---|---|---|
| The driver side seat belt does not rise/descend (under the appropriate conditions*) | Proceed to "The driver side easy access buckle function setting does not operate" | |
| The front passenger side seat belt does not rise/descend (under the appropriate conditions*) | Proceed to "The passenger side easy access buckle function setting does not operate" | |
| The driver side seat belt rises/descends unexpectedly | Position control ECU assembly | |
| The front passenger side seat belt rises/descends unexpectedly | The No. 2 position control ECU assembly | |
| Illumination function does not illuminate/turn off (seat belt rises/descends normally) | Proceed to "Illumination circuit" | |
| The driver side seat belt stops rising/descending during operation (under the appropriate conditions*) | Front seat inner belt assembly LH (for LHD) | |
| Front seat inner belt assembly RH (for RHD) | ||
| The front passenger side seat belt stops rising/descending during operation (under the appropriate conditions*) | Front seat inner belt assembly RH (for LHD) | |
| Front seat inner belt assembly LH (for RHD) | ||
| The driver and front passenger side seat belts do not rise/descend | Main body ECU (Multiplex network body ECU) |
*: For the appropriate conditions, Click here