Problem Symptoms Table [10/2015 - ]
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.
POWER DOOR LOCK CONTROL SYSTEM
| Symptom | Suspected Area | Link |
|---|---|---|
| Only driver door LOCK functions do not operate | Front door lock with motor assembly LH | Refer to INSPECTION [10/2015 - ] |
| Wire harness or connector | - | |
| Instrument panel junction block assembly | - | |
| Only driver door UNLOCK functions do not operate | Front door lock with motor assembly LH | Refer to INSPECTION [10/2015 - ] |
| Wire harness or connector | - | |
| Main body ECU (Multiplex network body ECU) | - | |
| Instrument panel junction block assembly | - | |
| Only front passenger door LOCK/UNLOCK functions do not operate | Front door lock with motor assembly RH | Refer to INSPECTION [10/2015 - ] |
| Wire harness or connector | - | |
| Instrument panel junction block assembly | - | |
| Only rear door LH LOCK/UNLOCK functions do not operate. | Rear door lock assembly LH | Refer to INSPECTION [10/2015 - ] |
| Wire harness or connector | - | |
| Instrument panel junction block assembly | - | |
| Only rear door RH LOCK/UNLOCK functions do not operate. | Rear door lock assembly RH | Refer to REMOVAL [10/2015 - 08/2016] , or refer to REMOVAL [08/2016 - 03/2018] , or refer to REMOVAL [03/2018 - 08/2019] , or refer to REMOVAL [08/2019 - ] |
| Wire harness or connector | - | |
| Instrument panel junction block assembly | - | |
| Only back door open function does not operate. | Power Back Door System | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - 08/2019] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] |
| All doors LOCK/UNLOCK functions do not operate via door control switch or door key cylinder | Proceed to "All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door Key Cylinder" | Refer to All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door Key Cylinder [10/2015 - ] |
| All doors LOCK/UNLOCK functions do not operate via door control switch | Proceed to "All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch" | Refer to All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch [10/2015 - ] |
| All doors LOCK/UNLOCK functions do not operate via multiplex network master switch assembly and door key cylinder. | Instrument panel junction block assembly | - |
| Main body ECU (Multiplex network body ECU) | - | |
| Lock operation continues even after doors have been locked*1 | Front door lock with motor assembly LH | Refer to INSPECTION [10/2015 - ] |
| Front door lock with motor assembly RH | Refer to REMOVAL [10/2015 - 08/2016] , or refer to REMOVAL [08/2016 - 03/2018] , or refer to REMOVAL [03/2018 - 08/2019] , or refer to REMOVAL [08/2019 - ] | |
| Rear door lock assembly LH | Refer to REMOVAL [10/2015 - 08/2016] , or refer to REMOVAL [08/2016 - 03/2018] , or refer to REMOVAL [03/2018 - 08/2019] , or refer to REMOVAL [08/2019 - ] | |
| Rear door lock assembly RH | Refer to REMOVAL [10/2015 - 08/2016] , or refer to REMOVAL [08/2016 - 03/2018] , or refer to REMOVAL [03/2018 - 08/2019] , or refer to REMOVAL [08/2019 - ] | |
| Wire harness or connector | - | |
| Instrument panel junction block assembly | - | |
| Main body ECU (Multiplex network body ECU) | - | |
| Only remote door LOCK/UNLOCK functions do not operate (power door lock operation is normally) *2 | DCM (Telematics system) | Refer to Remote Service Malfunction [10/2015 - 08/2019] , or refer to Remote Service Malfunction [08/2019 - ] |
HINT:
- *1: When the door unlock detection switch detects an unlock position signal after a door lock operation has been performed, a door lock operation will be performed 3 times.
- *2: w/ LEXUS ENFORM Remote