Parts Location PARTS LOCATION ILLUSTRATION 
Problem Symptoms Table PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of the problem symptom. 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. Horn system
System Diagram SYSTEM DIAGRAM  |
Toyota Tundra Service Manual > Power Door Lock Control System: Improper Operation
DESCRIPTION In cases where doors locked (lock) by themselves even though a door lock operation was not performed, possible causes include vehicle-side malfunction, environmental malfunction, or operation by the customer (including other passengers in the vehicle). By using the operation history, the ...
