Problem Symptoms Table [12/2017 - 10/2020]
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.
FRONT POWER SEAT CONTROL SYSTEM
| Symptom | Suspected Area | Link |
|---|---|---|
| Front power seat does not operate with front power seat switch | Refer to the "Front Power Seat does not Operate with Front Power Seat Switch". | Refer to Front Power Seat does not Operate with Front Power Seat Switch [12/2017 - 09/2019] , or refer to Front Power Seat does not Operate with Front Power Seat Switch [09/2019 - 10/2023] |
| One or more power seat motors or bladders do not operate | Refer to the "One or more Power Seat Motors do not Operate". | Refer to One or more Power Seat Motors do not Operate [12/2017 - 09/2019] , or refer to One or more Power Seat Motors do not Operate [09/2019 - 10/2023] |
| Power seat position is not memorized | Refer to the "Power Seat Position is not Memorized". | Refer to Power Seat Position is not Memorized [12/2017 - 10/2023] |
| Power seat does not return to memorized position | Refer to the "Power Seat does not Return to Memorized Position". | Refer to Power Seat does not Return to Memorized Position [12/2017 - 10/2023] |
| Wireless transmitter memory function does not operate | Refer to the "Wireless Transmitter Memory Function does not Operate". | Refer to Wireless Transmitter Memory Function does not Operate [12/2017 - 10/2023] |
| Wireless-linked return function does not operate | Refer to the "Wireless-linked Return Function does not Operate". | Refer to Wireless-linked Return Function does not Operate [12/2017 - 10/2023] |
| Passenger seat does not operate according to driver seat memory switch operation | CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 09/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 10/2020] |
| Seat memory switch (for driver seat) | Refer to INSPECTION [12/2017 - ] | |
| Harness and connector | - | |
| Multiplex network door ECU (for driver seat) | Refer to DISASSEMBLY [12/2017 - 09/2018] , or refer to DISASSEMBLY [09/2018 - 10/2020] | |
| Screen does not change even when navigation operation screen call switch is pressed | Integration control and panel assembly | Refer to INSPECTION [12/2017 - 10/2020] |
| Harness and connector | - | |
| Position control ECU assembly | Refer to DISASSEMBLY [12/2017 - 09/2018] , or refer to DISASSEMBLY [09/2018 - 10/2020] | |
| Seat does not operate by multi-display operation (operates normally by front power seat operation) | Navigation system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 10/2020] |
| Passenger seat does not operate according to rear power seat switch operation (full front/return, ottoman-linked) (w/ Rear Power Seat) | CAN communication system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - 09/2018] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2018 - 10/2020] |
| Rear multi operation system | Refer to HOW TO PROCEED WITH TROUBLESHOOTING [12/2017 - ] | |
| No. 2 position control ECU assembly | Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020] | |
| Passenger seat does not operate according to rear power seat switch operation (full front/return, ottoman-linked) (w/o Rear Power Seat) | Rear seat switch | Refer to REMOVAL [12/2017 - ] |
| Rear console box wire | Refer to DISASSEMBLY [12/2017 - ] | |
| Harness and connector | - | |
| No. 2 position control ECU assembly | Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020] | |
| Pneumatic support function and refresh function do not operate | Air leaks and blockages (including bent tubes) | Refer to INSPECTION [12/2017 - ] |
| Harness and connector | - | |
| Lumbar support adjuster assembly | Refer to DISASSEMBLY [12/2017 - 10/2023] | |
| Position control ECU assembly | Refer to REMOVAL [12/2017 - 09/2018] , or refer to REMOVAL [09/2018 - 10/2020] | |
| Only part of the pneumatic support function does not operate | Air leaks and blockages (including bent tubes) | Refer to INSPECTION [12/2017 - ] |
| Lumbar support adjuster assembly | Refer to DISASSEMBLY [12/2017 - 10/2023] | |
| Holes in bladder | - |