Tech Tips
If a problem occurs in certain locations or at certain times of day, check for the possibility of wave interference.
When the electrical key transmitter sub-assembly is brought near a electrical key and tire pressure monitoring system receiver assembly (RF band), door outside handle assembly (LF band), indoor electrical key antenna (LF band) or any of the electrical key antennas (LF band), the possibility of wave interference decreases. By doing this, whether wave interference is causing the problem can be checked.
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 |
|---|---|---|
| Key vehicle inside lock-in prevention function does not operate | External electrical waves | |
| Transmitter battery | ||
| Harness or connector | ||
| Engine switch | ||
| No. 1 indoor electrical key antenna assembly (front floor) | ||
| No. 2 indoor electrical key antenna assembly (rear floor) | ||
| No. 3 indoor electrical key antenna assembly (inside luggage) | ||
| Driver side junction block assembly | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| All door entry lock/unlock functions and wireless functions do not operate | Lighting system | |
| Power door lock control system | ||
| External electrical waves | ||
| Code registration | ||
| Transmitter battery | ||
| Harness or connector | ||
| Electrical key transmitter sub-assembly | ||
| Door control receiver | ||
| Main body ECU (Multiplex network body ECU) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| All door entry lock/unlock functions do not operate, but wireless functions operate | Check customize setting (Entry Cancel Function) | |
| Power door lock control system | ||
| External electrical waves | ||
| Electrical key transmitter sub-assembly | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Driver side door entry unlock function does not operate | Power door lock control system | |
| Lighting system | ||
| Harness or connector | ||
| Front door outside handle assembly (for driver door) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Front passenger side door entry unlock function does not operate | Power door lock control system | |
| Lighting system | ||
| Harness or connector | ||
| Front door outside handle assembly (for front passenger door) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Driver side door entry lock and unlock functions do not operate | Power door lock control system | |
| External electrical waves | ||
| Harness or connector | ||
| Front door outside handle assembly (for driver door) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Front passenger side door entry lock and unlock functions do not operate | Power door lock control system | |
| External electrical waves | ||
| Harness or connector | ||
| Front door outside handle assembly (for front passenger door) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Driver side door entry lock function does not operate | Power door lock control system | |
| Harness or connector | ||
| Front door outside handle assembly (for driver door) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Front passenger side door entry lock function does not operate | Power door lock control system | |
| Harness or connector | ||
| Front door outside handle assembly (for front passenger door) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Back door entry unlock function does not operate | Check customize setting (Back Door Opening Operation) | |
| Power door lock control system | ||
| Lighting system | ||
| Harness or connector | ||
| Back door opener switch assembly | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Back door entry lock and unlock functions do not operate | Power door lock control system | |
| External electrical waves | ||
| Harness or connector | ||
| Electrical key antenna (outside luggage compartment) | ||
| Back door opener switch assembly | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Back door entry lock function does not operate | Power door lock control system | |
| Harness or connector | ||
| Back door opener switch assembly | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Entry interior alarm does not sound | METER/GAUGE System | |
| Entry exterior alarm and answer-back buzzer do not sound | Check customize setting (Wireless Buzzer Resp) | |
| Lighting system | ||
| Harness or connector | ||
| Driver side junction block assembly | ||
| Wireless door lock buzzer | ||
| Main body ECU (Multiplex network body ECU) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| When returning to the vehicle, although door unlock operation was not performed, doors were in an unlocked state | Power door lock control system | |
| When returning to the vehicle, although door lock operation was not performed, doors were in a locked state | Power door lock control system |