Power Door Lock Control System Problem Symptoms Table

Body Electrical. Lexus Gs430, Gs300. Uzs190 Grs190
Door Lock. Lexus Gs430, Gs300. Uzs190 Grs190

Power Door Lock Control System -- Problem Symptoms Table


HINT:
Use the table below to help determine the causes of the problem symptom. The potential cases of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected area in the order they are listed. Replace parts as necessary.

Power door lock control system
Symptom
Suspected area
See page
All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch, Driver Side Door Key Cylinder
FR DOOR LH fuse*1
Click here
FR DOOR RH fuse*2
Click here
MPX-B fuse
Click here
D/C CUT fuse
Click here
Front door lock assembly (driver side)
Click here
Wire harness
Click here
Multiplex network master switch assembly
Click here
Driver door ECU
Click here
Cowl side junction block RH (multiplex network body ECU)
Click here
All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch
FR DOOR RH fuse*1
Click here
FR DOOR LH fuse*2
Click here
MPX-B fuse
Click here
Door control switch assembly
Click here
Wire harness
Click here
Passenger door ECU
Click here
Cowl side junction block RH (multiplex network body ECU)
Click here
Only Driver Door LOCK/UNLOCK Functions do not Operate
Front door lock assembly (driver side)
Click here
Wire harness
Click here
Driver door ECU
Click here
Only Passenger Door LOCK/UNLOCK Functions do not Operate
Front door lock assembly (passenger side)
Click here
Wire harness
Click here
Passenger door ECU
Click here
Only Rear Door LH LOCK/UNLOCK Functions do not Operate
RR DOOR LH fuse
Click here
Rear door lock assembly LH
Click here
Wire harness
Click here
Rear multiplex network door ECU LH
Click here
Only Rear Door RH LOCK/UNLOCK Functions do not Operate
RR DOOR RH fuse
Click here
Rear door lock assembly RH
Click here
Wire harness
Click here
Rear multiplex network door ECU LH
Click here
Key lock-in prevention function does not work properly (manual operation and key-linked lock are available)
Front door courtesy light switch assembly (driver side)
Click here
Wire harness
Click here
Cowl side junction block RH (multiplex network body ECU)
Click here
Double Lock Function does not Operate Properly
Front door lock assembly
Click here
Rear door lock assembly
Click here
Wire harness
Click here
Door ECU
Click here
Cowl side junction block RH (multiplex network body ECU)
Click here
HINT:
*1: LHD
*2: RHD