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.
| Symptom | Suspected Area | See page |
|---|---|---|
| All Doors cannot be Locked/Unlocked Simultaneously | Front door lock assembly LH*1 | |
| Front door lock assembly RH*2 | ||
| Harness or connector | ||
| Power window regulator master switch assembly | ||
| Main body ECU (Multiplex network body ECU) | ||
| Instrument panel junction block assembly | ||
| Only Driver Door LOCK/UNLOCK Functions do not Operate | Front door lock assembly LH*1 | |
| Front door lock assembly RH*2 | ||
| Harness or connector | - | |
| Main body ECU (Multiplex network body ECU) | - | |
| Instrument panel junction block assembly | - | |
| Only Passenger Door LOCK/UNLOCK Functions do not Operate | Front door lock assembly LH*1 | |
| Front door lock assembly RH*2 | ||
| Harness or connector | - | |
| Main body ECU (Multiplex network body ECU) | - | |
| Instrument panel junction block assembly | - | |
| Only Back Door LOCK/UNLOCK Functions do not Operate*3 | Back door opener switch | |
| Back door lock assembly | ||
| Harness or connector | - | |
| Main body ECU (Multiplex network body ECU) | - | |
| Instrument panel junction block assembly | - | |
| Only Back Door LOCK/UNLOCK Functions do not Operate*4 | Back door opener switch | |
| Back door lock assembly | ||
| Harness or connector | - | |
| Certification ECU (smart key ECU assembly) | - | |
| Main body ECU (Multiplex network body ECU) | - | |
| Instrument panel junction block assembly | - | |
| CAN communication system | ||
| Double Locking Function does not Operate Properly*5 | LIN communication system | |
| Front door lock assembly RH | ||
| Front door lock assembly LH | ||
| Rear door lock assembly RH | ||
| Rear door lock assembly LH | ||
| Harness or connector | - | |
| Double lock door control relay assembly | - |
*1: for LHD
*2: for RHD
*3: w/o Entry and Start System
*4: w/ Entry and Start System
*5: w/ Double Locking Function