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.
As the door control battery is installed between the vehicle battery and main body ECU (instrument panel junction block assembly), first perform the inspections in On- Vehicle Inspection to confirm that there are no malfunctions in the power source circuit for the main body ECU (instrument panel junction block assembly) before performing this troubleshooting procedure.
| Symptom | Suspected Area | See page |
|---|---|---|
| Illuminated entry system does not operate | Engine switch (for 1WW)*1 | |
| Ignition switch (for 1WW)*2 | ||
| Engine switch (for 2WW)*1 | ||
| Ignition switch (for 2WW)*2 | ||
| CAN communication system | ||
| Wireless door lock control system*1 | ||
| Wireless door lock control system*2 | ||
| Door courtesy switch circuit | ||
| Luggage compartment door courtesy switch circuit | ||
| Main body ECU (instrument panel junction block assembly) | - |
*1: w/ Entry and Start System
*2: w/o Entry and Start System
| Symptom | Suspected Area | See page |
|---|---|---|
| Courtesy light does not turn on (battery saving control system [interior light auto cut function] is normal) | Front door courtesy light bulb | |
| Front door courtesy light switch assembly | ||
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Luggage compartment light does not operate (battery saving control system [interior light auto cut function] is normal) | Luggage compartment light bulb (for Sedan) | |
| Luggage compartment light bulb (for Wagon) | ||
| Luggage compartment door lock assembly (for Sedan) | ||
| Back door lock assembly (for Wagon) | ||
| Harness or connector | - |
| Symptom | Suspected Area | See page |
|---|---|---|
| Battery saving function (basic function) does not operate* | Door courtesy switch circuit | |
| Luggage compartment door courtesy switch circuit | ||
| Harness or connector | - | |
| Main body ECU (instrument panel junction block assembly) | - | |
| Certification ECU | - | |
| Battery saving function (interior light auto cut function) does not operate | DOME CUT relay | |
| Harness or connector | - | |
| Main body ECU (instrument panel junction block assembly) | - |
*: w/ Entry and Start System
| Symptom | Suspected Area | See page |
|---|---|---|
| Vanity light does not operate (battery saving control system [interior light auto cut function] is normal) | Vanity light | |
| Visor assembly (for Sedan) | ||
| Visor assembly (for Wagon) | ||
| Harness or connector | - | |
| Map light (in roof console box) does not operate (battery saving control system [interior light auto cut function] is normal) | Illumination circuit | |
| Map light bulb | ||
| Main body ECU (instrument panel junction block assembly) | - | |
| No. 1 room light does not operate (battery saving control system [interior light auto cut function] is normal) | Illumination circuit | |
| No. 1 room light bulb | ||
| Main body ECU (instrument panel junction block assembly) | - | |
| Glove box light does not operate | Glove box light | |
| Harness or connector | - | |
| No. 1 interior illumination light assembly does not operate* | No. 1 interior illumination light assembly (for LH) | |
| No. 1 interior illumination light assembly (for RH) | ||
| No. 1 interior illumination light assembly | ||
| Harness or connector | - | |
| Main body ECU (instrument panel junction block assembly) | - |
*: w/ No. 1 Interior Illumination Light