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Power Door Lock Control System

This system uses the multiplex communication system, so check diagnosis system of the multiplex communication system before you proceed with troubleshooting.

PROBLEM SYMPTOMS TABLE - POWER DOOR LOCK CONTROL SYSTEM

Symptom Suspect Area
All the doors cannot be locked or unlocked. (Power window control system is normal.)
  1. Door Unlock Detection Switch
  2. Door Key Lock and Unlock Switch
  3. Driver Door ECU
Only one back lock control does not operate.
  1. Back Door Lock Motor
  2. Back Door Unlock Detection Switch
  3. Back Door Key Lock and Unlock Switch
  4. Back Door ECU
Driver door key related function does not operate.
  1. Door Key Lock and Unlock Switch
  2. Driver Door ECU
Front passenger door key related function does not operate.
  1. Door Key Lock and Unlock Switch
  2. Passenger Door ECU
Back door key related function does not operate.
  1. Door Key Lock and Unlock Switch
  2. Back Door ECU