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 | See page |
|---|---|---|
| Wireless control function and entry function do not operate | Proceed to "Only Wireless Control Function is Inoperative" | |
| Wireless control function does not operate but entry function operates | Proceed to "No Answer-Back" | |
| Unable to register key | Door control transmitter | - |
| Front door courtesy light switch assembly RH | ||
| Ignition switch (for 2TR-FE) | ||
| Ignition switch (for 1KD-FTV) | ||
| Ignition switch (for 2KD-FTV) | ||
| Door control receiver | ||
| Only automatic lock function does not operate properly | Perform operation check | |
| Instrument panel junction block assembly (body ECU) | - | |
| Only illuminated entry function does not operate | Perform operation check | |
| Lighting system (operation check) | ||
| Instrument panel junction block assembly (body ECU) | - | |
| Only door ajar warning function does not operate | Perform operation check | |
| Instrument panel junction block assembly (body ECU) | - |