Power Door Lock Control System

WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.

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

POWER DOOR LOCK CONTROL SYSTEM

Symptom/Suspect Area

See

All Doors Cannot Be Locked Or Unlocked (Power Window Control System Is Normal)

Door Lock Control Switch

⁽¹⁾

Wire Harness

.....

Body ECU

⁽²⁾

Only One Back Lock Control Does Not Operate

Door Lock Motor

⁽¹⁾

Wire Harness

.....

Back Door ECU

⁽³⁾

Door Key Related Function Does Not Operate

Door Key Lock And Unlock Switch

⁽¹⁾

Wire Harness

.....

Body ECU

⁽²⁾

Key Confinement Prevention Function Does Not Operate

Key Unlock Warning Switch

⁽¹⁾

Door Courtesy Switch

⁽⁴⁾

Wire Harness

.....

Body ECU

⁽²⁾

⁽¹⁾	INSPECTION

⁽²⁾	BODY, CAB CONTROL SYSTEMS -Body ECU

⁽³⁾	HOW TO PROCEED WITH TROUBLESHOOTING

⁽⁴⁾	See Step 5 Of INSPECTION