Note
When replacing the main body ECU (multiplex network body ECU), make sure to replace it with a new one.
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 |
|---|---|---|
| Front Power Seat does not Operate with Front Power Seat Switch | Position control ECU and switch assembly | Click here |
| Harness or connector | ||
| One or more Power Seat Motors do not Operate | Separate type front seat cushion spring assembly | Click here |
| Separate type front seatback spring assembly | ||
| Power seat switch assembly | ||
| Position control ECU and switch assembly | ||
| Harness or connector | ||
| Power Seat Position is not Memorized | Position control ECU and switch assembly | Click here |
| Main body ECU (multiplex network body ECU) | ||
| Seat memory switch | ||
| Harness or connector | ||
| Power Seat does not Return to Memorized Position | Automatic transaxle system (for Automatic Transaxle) | Click here |
| Continuosly variable transaxle system (for CVT) | ||
| Manual transaxle system (for Manual Transaxle) | ||
| Lighting system (int) | ||
| Position control ECU and switch assembly | ||
| Main body ECU (multiplex network body ECU) | ||
| Wireless Transmitter Memory Function does not Operate | Power door lock control system | Click here |
| Lighting system (int) | ||
| Entry and start system (for Start Function) [w/ Entry and Start System] | ||
| Position control ECU and switch assembly | ||
| Main body ECU (multiplex network body ECU) | ||
| Certification ECU (smart key ECU assembly) [w/ Entry and Start System] | ||
| Wireless-linked Return Function does not Operate | Lighting system (int) | Click here |
| Entry and start system (for Entry Function) [w/ Entry and Start System] | ||
| Main body ECU (multiplex network body ECU) | ||
| Position control ECU and switch assembly | ||
| Certification ECU (smart key ECU assembly) [w/ Entry and Start System] |