Power Door Lock Control System - Problem Symptoms Table

Lexus IS250 IS220d GSE20 ALE20 - DOOR LOCK


POWER DOOR LOCK CONTROL SYSTEM - PROBLEM SYMPTOMS TABLE

POWER DOOR LOCK CONTROL SYSTEM:
SymptomSuspected areaSee page
All doors cannot be locked/unlocked simultaneously by neither door control switch nor door key cylinder 1. Power source circuit (Main body ECU RH)
2. Replace main body ECU RH (Cowl side J/B RH) -
All doors cannot be locked/unlocked simultaneously by driver side door control switch 1. Multiplex network master switch assembly
2. Replace main body ECU RH (Cowl side J/B RH) -
All doors cannot be locked/unlocked simultaneously by front passenger side door control switch 1. Door control switch circuit (Front passenger side door)
2. Replace main body ECU RH (Cowl side J/B RH) -
All doors cannot be locked/unlocked simultaneously by door key cylinder 1. Driver side door key lock and unlock switch circuit
2. Multiplex network master switch assembly
3. Replace main body ECU RH (Cowl side J/B RH) -
Driver side door lock does not operate 1. Driver side door lock motor circuit
2. Replace main body ECU RH (Cowl side J/B RH) -
Passenger side door lock does not operate 1. Front passenger side door lock motor circuit
2. Replace main body ECU RH (Cowl side J/B RH) -
Rear LH side door lock does not operate 1. Rear door lock motor LH circuit
2. Replace main body ECU RH (Cowl side J/B RH) -
Rear RH side door lock does not operate 1. Rear door lock motor RH circuit
2. Replace main body ECU RH (Cowl side J/B RH) -
Key lock-in prevention function does not work properly (manual operation and key-linked lock are active) 1. Door courtesy switch circuit (Driver side)
2. Entry and start system
3. Replace main body ECU RH (Cowl side J/B RH) -
One or more doors cannot be locked/unlocked simultaneously (Wireless key operation) 1. Wireless door lock system
2. Driver side door unlock detection switch circuit
3. Front passenger door unlock detection switch circuit
4. Rear door unlock detection switch LH circuit
5. Rear door unlock detection switch RH circuit
6. Replace main body ECU RH (Cowl side J/B RH) -
One or more doors cannot be locked/unlocked simultaneously (Theft deterrent operation) 1. Theft deterrent system (w/ intrusion sensor)
2. Theft deterrent system (w/o intrusion sensor)
3. Driver side door unlock detection switch circuit
4. Front passenger door unlock detection switch circuit
5. Rear door unlock detection switch LH circuit
6. Rear door unlock detection switch RH circuit
7. Replace main body ECU RH (Cowl side J/B RH) -
Double locking system does not operate (All doors) 1. Door opening relay power source circuit
2. Replace double door lock ECU -
3. Replace main body ECU RH (Cowl side J/B RH) -
Driver side double lock does not operate 1. Driver side double lock motor circuit
2. Replace double door lock ECU -
Passenger side double lock does not operate 1. Front passenger side double lock motor circuit
2. Replace double door lock ECU -
Rear LH side double lock does not operate 1. Rear double lock motor LH circuit
2. Replace double door lock ECU -
Rear RH side double lock does not operate 1. Rear double lock motor RH circuit
2. Replace double door lock ECU -
Fail-safe for double locking system does not operate 1. Driver side double lock position switch circuit
2. Front passenger side double lock position switch circuit
3. Rear double lock position switch LH circuit
4. Rear double lock position switch RH circuit
5. Replace double door lock ECU -