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.
First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no LIN communication and CAN communication malfunctions before troubleshooting this symptom.
| Symptom | Suspected Area | See page |
|---|---|---|
| Both climate control seat system does not operate | Refreshing seat switch LH | |
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Climate control seat system does not operate (for Front Seat RH) | Check blower duct | |
| Seat climate control blower RH | ||
| Refreshing seat switch RH | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Climate control seat system does not operate (for Front Seat LH) | Check blower duct | |
| Seat climate control blower LH | ||
| Refreshing seat switch LH | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Both climate control seat system does not operate | Cooler control switch assembly | |
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Climate control seat system does not operate (for Rear No. 1 Seat RH) | Check blower duct | |
| Seat climate control blower RH | ||
| Rear seat climate control blower RH | ||
| Cooler control switch assembly | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Climate control seat system does not operate (for Rear No. 1 Seat LH) | Check blower duct | |
| Seat climate control blower LH | ||
| Rear seat climate control blower LH | ||
| Cooler control switch assembly | ||
| Air conditioning amplifier assembly | ||
| Harness or connector | - | |
| Climate concierge function does not operate | Air conditioning system |