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 door control receiver (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 | Affected by wave interference | |
| Harness or connector | ||
| No. 1 indoor electrical key antenna assembly (front floor) | ||
| No. 2 indoor electrical key antenna assembly (rear floor) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Transmitter battery | ||
| Driver Side Junction Block Assembly | ||
| Power switch | ||
| All door entry lock/unlock functions and wireless functions do not operate | Lighting system | |
| Power door lock control system | ||
| Affected by wave interference | ||
| 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) | |
| Affected by wave interference | ||
| 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 | |
| Harness or connector | ||
| Front door outside handle assembly (for Driver Door) | ||
| Lighting system | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Front passenger side door entry unlock function does not operate | Power door lock control system | |
| Harness or connector | ||
| Front door outside handle assembly (for front passenger door) | ||
| Lighting system | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Rear Door LH Entry Unlock Function does not Operate | Power door lock control system | |
| Harness or connector | ||
| Rear door outside handle assembly LH | ||
| Lighting system | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Rear Door RH Entry Unlock Function does not Operate | Power door lock control system | |
| Harness or connector | ||
| Rear door outside handle assembly RH | ||
| Lighting system | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Driver side door entry lock and unlock functions do not operate | Power door lock control system | |
| Affected by wave interference | ||
| 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 | |
| Affected by wave interference | ||
| Harness or connector | ||
| Front door outside handle assembly (for front passenger door) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Rear Door LH Entry Lock and Unlock Functions do not Operate | Power door lock control system | |
| Affected by wave interference | ||
| Harness or connector | ||
| Rear door outside handle assembly LH | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Rear Door RH Entry Lock and Unlock Functions do not Operate | Power door lock control system | |
| Affected by wave interference | ||
| Harness or connector | ||
| Rear door outside handle assembly RH | ||
| 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) | ||
| Rear Door LH Entry Lock Function does not Operate | Power door lock control system | |
| Harness or connector | ||
| Rear door outside handle assembly LH | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Rear Door RH Entry Lock Function does not Operate | Power door lock control system | |
| Harness or connector | ||
| Rear door outside handle assembly RH | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Luggage compartment door entry unlock function does not operate when key is outside luggage compartment | Check customize setting (Trunk Open Mode) | |
| Affected by wave interference | ||
| Power trunk lid system | ||
| Harness or connector | ||
| Luggage electrical key switch | ||
| No. 3 indoor electrical key antenna assembly (inside luggage compartment) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Key luggage compartment lock-in prevention function does not operate | Affected by wave interference | |
| Harness or connector | ||
| No. 3 indoor electrical key antenna assembly (inside luggage compartment) | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| Entry interior alarm does not sound | METER / GAUGE System | |
| Entry unlock and unlatch functions do not operate using kick sensor | Check customize setting (Kick Sensor Function) | |
| Power trunk lid system | ||
| Certification ECU (Smart Key ECU Assembly) | ||
| 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) |