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 "All Door Entry Lock / Unlock Functions and Wireless Functions do not Operate" | |
| Wireless control function does not operate but entry function operate | Replace electrical key transmitter sub-assembly | - |
| No-answer back | Proceed to "No-Answer Back" | |
| Only automatic lock function does not operate normally | Perform operation check | |
| Lighting system (door courtesy switch circuit) | ||
| Main body ECU (network gateway ECU) | - | |
| Instrument panel junction block assembly | - | |
| Only illuminated entry function does not operate | Perform operation check | |
| Lighting system | ||
| Main body ECU (network gateway ECU) | - | |
| Instrument panel junction block assembly | - | |
| Only door ajar warning function does not operate | Perform operation check | |
| Lighting system (door courtesy switch circuit) | ||
| Main body ECU (network gateway ECU) | - | |
| Instrument panel junction block assembly | - |