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Problem Symptoms Table

WARNING: This page is about a different car, the 2011 Toyota Matrix. 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 Suspected Area See
All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch, Driver Side Door Key Cylinder Fuse (DOOR) Refer to All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch, Driver Side Door Key Cylinder 
Front door lock assembly (for driver side) -
Wire harness or connector -
Door control switch (for driver side) -
Door control switch (for passenger side) -
Main body ECU (instrument panel junction block) -
Only Driver Door LOCK/UNLOCK Functions do not Operate Front door lock assembly (for driver side) Refer to 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) Refer to 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 Refer to 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 Refer to INSPECTION
Wire harness or connector -
Main body ECU (instrument panel junction block) -
Only Back Door LOCK/UNLOCK Functions do not Operate Back door lock assembly Refer to INSPECTION
Wire harness or connector -
Main body ECU (instrument panel junction block) -
Key Lock-in Prevention Function does not Work Properly Front door courtesy light switch assembly (for driver side) Refer to Key Lock-in Prevention Function does not Work Properly 
Front door courtesy light switch assembly (for passenger side) -
Unlock warning switch assembly -
Wire harness or connector -
Main body ECU (instrument panel junction block) -