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Home >> Lexus >> 2006 >> RX 400h AWD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Power Door Lock Control System >> Problem Symptoms Table

Problem Symptoms Table

PROBLEM SYMPTOMS

Symptom Suspected area
All doors cannot be locked/unlocked simultaneously by neither door control switch nor door key cylinder Power source circuit (Body ECU). See CUSTOMIZE PARAMETERS 
Body ECU
All doors cannot be locked/unlocked simultaneously by driver side door control switch Multiplex network master switch assembly. See  1
Body ECU
All doors cannot be locked/unlocked simultaneously by front passenger DOOR CONTROL SWITCH CIRCUIT (FRONT PASSENGER SIDE DOOR) 
Body ECU
All doors cannot be locked/unlocked simultaneously by door key cylinder DRIVER SIDE DOOR KEY LOCK AND UNLOCK SWITCH CIRCUIT 
Multiplex network master switch assembly. See  1
Body ECU
Driver side door lock does not operate DRIVER SIDE DOOR LOCK MOTOR CIRCUIT 
Body ECU
Passenger side door lock does not operate FRONT PASSENGER SIDE DOOR LOCK MOTOR CIRCUIT 
Body ECU
Rear LH side door lock does not operate REAR DOOR LOCK MOTOR LH CIRCUIT 
Body ECU
Rear RH side door lock does not operate REAR DOOR LOCK MOTOR RH CIRCUIT 
Body ECU
Key lock-in prevention function does not work properly (manual operation and key-linked lock are active) DOOR COURTESY SWITCH CIRCUIT
UNLOCK WARNING SWITCH CIRCUIT 
Body ECU
One or more doors cannot be locked/unlocked simultaneously (Wireless key operation) Troubleshooting. See SYSTEM DESCRIPTION 
DRIVER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT 
FRONT PASSENGER DOOR UNLOCK DETECTION SWITCH CIRCUIT 
REAR DOOR UNLOCK DETECTION SWITCH LH CIRCUIT 
REAR DOOR UNLOCK DETECTION SWITCH RH CIRCUIT 
Body ECU
One or more doors cannot be locked/unlocked simultaneously (Theft deterrent operation) Troubleshooting
DRIVER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT 
FRONT PASSENGER DOOR UNLOCK DETECTION SWITCH CIRCUIT 
REAR DOOR UNLOCK DETECTION SWITCH LH CIRCUIT 
REAR DOOR UNLOCK DETECTION SWITCH RH CIRCUIT