Problem Symptoms Table [02/2019 - 08/2020]
NOTE:
The vehicle auxiliary battery supplies power to the main body ECU (multiplex network body ECU) via the door control battery. Therefore, before performing troubleshooting, make sure to perform an on-vehicle inspection to confirm that the main body ECU (multiplex network body ECU) power source circuit is normal.
HINT:
- 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.
WIRELESS DOOR LOCK CONTROL SYSTEM
| Symptom | Suspected Area | Link |
|---|---|---|
| Only wireless control function is inoperative. | Power door lock control system | Refer to Only Wireless Control Function is Inoperative [02/2019 - 08/2020] |
| Key reminder warning system | ||
| Door control receiver | ||
| Transmitter battery | ||
| Wave interference | ||
| Unmatching recognition code | ||
| Door control transmitter module set sub-assembly | ||
| 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 | Refer to No Answer-Back [02/2019 - 08/2020] |
| Perform operation check | ||
| Lighting system (INT) (Door unlock detection switch circuit) | ||
| Lighting system (EXT) (Hazard warning switch circuit) | ||
| Wireless door lock buzzer (w/ Wireless Door Lock Buzzer Answer-back Function) | ||
| Main body ECU (Multiplex network body ECU) | ||
| Only automatic lock function does not operate properly. | Perform operation check | Refer to OPERATION CHECK [11/2018 - 08/2020] |
| Key reminder warning system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [02/2019 - ] | |
| Lighting system (INT) (Door courtesy light switch circuit) | Refer to Door Courtesy Switch Circuit [11/2018 - 10/2023] | |
| Lighting system (INT) (Back door courtesy light switch circuit) | Refer to Back Door Courtesy Switch Circuit [11/2018 - 10/2023] | |
| Main body ECU (Multiplex network body ECU) | Refer to REMOVAL [02/2019 - 10/2019] , or refer to REMOVAL [10/2019 - 08/2020] | |
| Only illuminated entry function does not operate. | Lighting system (INT) | Refer to PROBLEM SYMPTOMS TABLE [02/2019 - 06/2020] , or refer to PROBLEM SYMPTOMS TABLE [06/2020 - 08/2020] |
| Only panic alarm function does not operate. | Perform operation check | Refer to OPERATION CHECK [11/2018 - 08/2020] |
| Theft deterrent system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2018 - 12/2021] | |
| When returning to the vehicle, although door unlock operation was not performed, doors were in an unlocked state. | Power door lock control system | Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2018 - 10/2023] |
| When returning to the vehicle, although door lock operation was not performed, doors were in a locked state. | Power door lock control system | Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2018 - 10/2023] |