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 | See page |
|---|---|---|
| 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 | - | |
| Instrument panel junction block assembly (body computer) | - | |
| Certification ECU (smart key ECU assembly) | - | |
| Harness or connector | - | |
| All door entry lock/unlock functions do not operate, but wireless functions operate | Power door lock control system | |
| 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 lock assembly RH | - | |
| Instrument panel junction block assembly (body computer) | - | |
| 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 lock assembly LH | - | |
| Rear door lock actuator assembly RH/LH | - | |
| Back door remote control assembly | - | |
| Door control relay assembly RH/LH (w/ Power Slide Door) | - | |
| Slide door control junction female (w/o Power Slide Door) | - | |
| Slide door control junction male (w/o Power Slide Door) | - | |
| Instrument panel junction block assembly (body computer) | - | |
| 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 RH | - | |
| No. 1 indoor electrical key antenna assembly (front bumper RH) | - | |
| 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 LH | - | |
| No. 1 indoor electrical key antenna assembly (front bumper LH) | - | |
| 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 lock assembly RH | - | |
| Instrument panel junction block assembly (body computer) | - | |
| Certification ECU (smart key ECU assembly) | - | |
| Harness or connector | - | |
| Front passenger side door entry lock function does not operate | Power door lock control system | |
| Instrument panel junction block assembly (body computer) | - | |
| Certification ECU (smart key ECU assembly) | - | |
| Harness or connector | - | |
| Room oscillator does not recognize key | Smart entry and start system (for Start Function) | |
| No. 2 indoor electrical key antenna assembly (front floor) | - | |
| No. 3 indoor electrical key antenna assembly (rear floor) | - | |
| 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 | |
| Instrument panel junction block assembly (body computer) | - | |
| Certification ECU (smart key ECU assembly) | - | |
| Harness or connector | - | |
| Back door entry lock and unlock function do not operate | Power door lock control system | |
| License plate light assembly | - | |
| Electrical key antenna (back door) | - | |
| Certification ECU (smart key ECU assembly) | - | |
| Harness or connector | - | |
| Back door entry lock function do not operate | Power door lock control system | |
| Instrument panel junction block assembly (body computer) | - | |
| Certification ECU (smart key ECU assembly) | - | |
| Harness or connector | - |