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 the door control receiver (RF band), door outside handle (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 |
|---|---|---|
| Entry interior alarm does not sound | Meter/gauge system | |
| Certification ECU (Smart key ECU assembly) | - | |
| All door entry lock/unlock functions and wireless functions do not operate | Power door lock control system | |
| Electrical key transmitter sub-assembly | - | |
| Transmitter battery | - | |
| Door control receiver | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| All door entry lock/unlock functions do not operate, but wireless functions operate | 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 | |
| Front door outside handle assembly (for driver door) | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Front passenger side door entry unlock function does not operate | Power door lock control system | |
| Front door outside handle assembly (for front passenger door) | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Driver side door entry lock and unlock functions do not operate | Power door lock control system | |
| Front door outside handle assembly (for driver door) | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Front passenger side door entry lock and unlock functions do not operate | Power door lock control system | |
| Front door outside handle assembly (for front passenger door) | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Driver side door entry lock function does not operate | Power door lock control system | |
| Front door outside handle assembly (for driver door) | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Front passenger side door entry lock function does not operate | Power door lock control system | |
| Front door outside handle assembly (for front passenger door) | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Room oscillator does not recognize key | Entry and start system (for Start Function) | |
| No. 1 indoor electrical key antenna (front floor) | - | |
| No. 2 indoor electrical key antenna (rear floor) | - | |
| No. 3 indoor electrical key antenna (inside luggage) | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Electrical key transmitter sub-assembly | - | |
| Back door entry unlock function does not operate | Power door lock control system | |
| Back door opener switch assembly | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Back door entry lock and unlock functions do not operate | Power door lock control system | |
| Electrical key antenna (outside luggage) | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Back door entry lock function does not operate | Power door lock control system | |
| Back door opener switch assembly | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - | |
| Entry unlock and unlatch functions do not operate using kick sensor* | CAN communication system | |
| Power back door system | - | |
| Certification ECU (Smart key ECU assembly) | - | |
| Harness or connector | - |
*: w/ Touchless Power Back Door