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Problem Symptoms Table

WARNING: This page is about a different car, the 2006 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOMS TABLE

Symptom Suspected Area Reference
All doors lock and unlock functions do not operate via master switch, driver side door key cylinder
  1. DOOR1 fuse
  2. ECU-B fuse
  3. Power window regulator master switch assy
  4. Front door lock assy LH
  5. Instrument panel junction block assy (body ECU)
  6. Wire harness
 ALL DOORS LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE VIA MASTER SWITCH OR DRIVER SIDE DOOR KEY CYLINDER 
Key lock-in prevention function does not work properly (Manual operation and operation interlocked with key are active)
  1. Unlock warning switch assy
  2. Courtesy lamp switch assy LH (Driver side door)
  3. Instrument panel junction block assy (body ECU)
  4. Wire harness
 KEY LOCK-IN PREVENTION FUNCTION DOES NOT WORK PROPERLY (MANUAL OPERATION AND OPERATION INTERLOCKED WITH KEY ARE ACTIVE) 
Only back door can not be opened (Unlocked)
  1. Back door opener switch assy
  2. W/Motor back door lock assy LH (Back door lock)
  3. Instrument panel junction block assy (body ECU)
  4. Wire harness
 ONLY BACK DOOR CANNOT BE OPENED (UNLOCKED) 
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