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Wireless Door Lock Control

PROBLEM SYMPTOMS TABLE - WIRELESS DOOR LOCK CONTROL SYSTEM

Symptom Suspect Area
All function of wireless door lock control system do not operate
  • 2. Transmitter
  • 3. Key unlock warning switch circuit
  • 4. Back door ECU
  • 5. MPX circuit
  • 6. Body ECU
Lock (or unlock) function does not operate
  1. Door key lock and unlock switch circuit
  2. Door unlock detection switch circuit
  3. Body ECU
Automatic lock function operates even if any door is opened within 30 seconds after all doors are unlocked by wireless door lock control system
  1. Door courtesy switch circuit
  2. Back door ECU
Wireless door lock operates, but the buzzer does not sound
  1. Wireless door lock buzzer circuit
  2. MPX circuit
  3. Back door ECU
Buzzer sound, but wireless door lock function does not operate
  1. Body ECU
Back door window open control system does not operate
  1. Back door power window motor circuit
  2. Rear wiper limit switch circuit
  3. Back door ECU
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