Hint:
Past problems that seem unrelated may also help in some cases.

Operation flow
Symptom confirmation and diagnostic trouble codeBasic audio operations
Basic audio operations and functions common to each mode are
explained in this section.
Operating the audio system
Press this knob to turn the
audio system on and off, and
turn it to adjust the volume.
Press this button to eject a disc
Insert a disc into the disc slot
Press to pa ...
Only passenger door lock / unlock functions do not operate
Description
The main body ecu receives lock / unlock switch signals and activates the
door lock motor accordingly.
Wiring diagram
Inspection procedure
Read value of intelligent tester (lock position switch)
Use the data list to check if the door lock is
functioning properly.
...
Components
...