Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Only wireless control function is inoperative | Power door lock control system | |
| Key reminder warning system | ||
| Door control receiver | ||
| Transmitter battery | ||
| Wave interference | ||
| Unmatching recognition code | ||
| Main body ECU (Multiplex network body ECU) | ||
| Wire harness or connector | ||
| Door control receiver | ||
| Only answer-back function does not operate properly | Check customize setting | |
| Perform operation check | ||
| Lighting system (Int) (Door unlock detection switch circuit) | ||
| Lighting system (Ext) (Hazard warning switch circuit) | ||
| Main body ECU (Multiplex network body ECU) | ||
| Wire harness or connector | ||
| Instrument panel junction block assembly | ||
| Wireless door lock buzzer | ||
| Only automatic lock function does not operate properly | Perform operation check | |
| Key reminder warning system | ||
| Lighting system (Int) (Front door courtesy light switch circuit) | ||
| Lighting system (Int) (Rear door courtesy light switch circuit) | ||
| Main body ECU (Multiplex network body ECU) | - | |
| Only illuminated entry function does not operate | Perform operation check | |
| Lighting system (Int) | ||
| Main body ECU (Multiplex network body ECU) | - | |
| Only door ajar warning function does not operate | Wireless Door Lock Buzzer | |
| When returning to the vehicle, although door unlock operation was not performed, doors were in an unlocked state. | Power door lock control system | |
| When returning to the vehicle, although door lock operation was not performed, doors were in a locked state. | Power door lock control system |