Problem Symptoms Table
WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
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.
Power Door Lock Control System
SYMPTOM CHART
| Symptom | Suspected Area | See |
|---|---|---|
| All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch, Both Front Door Key Cylinders | Fuse (DOOR) | ALL DOORS LOCK / UNLOCK FUNCTIONS DO NOT OPERATE VIA MASTER SWITCH, BOTH FRONT DOOR KEY CYLINDERS |
| Front door lock assembly (for driver side) | INSPECTION | |
| Front door lock assembly (for passenger side) | INSPECTION | |
| Wire harness or connector | - | |
| Door control switch (for driver side) | INSPECTION | |
| Door control switch (for passenger side) | INSPECTION | |
| Main body ECU (instrument panel junction block) | - | |
| Only Driver Door LOCK/UNLOCK Functions do not Operate | Front door lock assembly (for driver side) | INSPECTION |
| Wire harness or connector | - | |
| Main body ECU (instrument panel junction block) | - | |
| Only Passenger Door LOCK/UNLOCK Functions do not Operate | Front door lock assembly (for passenger side) | INSPECTION |
| Wire harness or connector | - | |
| Main body ECU (instrument panel junction block) | - | |
| Only Rear Door LH LOCK/UNLOCK Functions do not Operate | Rear door lock assembly LH | INSPECTION |
| Wire harness or connector | - | |
| Main body ECU (instrument panel junction block) | - | |
| Only Rear Door RH LOCK/UNLOCK Functions do not Operate | Rear door lock assembly RH | INSPECTION |
| Wire harness or connector | - | |
| Main body ECU (instrument panel junction block) | - | |
| Key Lock-in Prevention Function does not Work Properly*1 | Smart key system (Room oscillator does not recognize key) | ROOM OSCILLATOR DOES NOT RECOGNIZE KEY |
| Front door courtesy light switch assembly (for driver side) | INSPECTION | |
| Front door courtesy light switch assembly (for passenger side) | INSPECTION | |
| Wire harness or connector | - | |
| Main body ECU (instrument panel junction block) | - | |
| Key Lock-in Prevention Function does not Work Properly*2 | Front door courtesy light switch assembly (for driver side) | KEY LOCK-IN PREVENTION FUNCTION DOES NOT WORK PROPERLY |
| Front door courtesy light switch assembly (for passenger side) | INSPECTION | |
| Unlock warning switch assembly | INSPECTION | |
| Wire harness or connector | - | |
| Main body ECU (instrument panel junction block) | - |