Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001A0M005X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Door Key Lock / Unlock Switch Circuit; 2007 MY LX470 [08/2006 -        ]

Door Key Lock / Unlock Switch Circuit

DESCRIPTION

The door key lock and unlock switch is built in the door key cylinder. When the key is turned to the lock side, the LOCK terminal of the switch is grounded and when the key is turned to the unlock side, the UNLOCK terminal of the switch is grounded.

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

When using the intelligent tester, start from *1. When not using the intelligent tester, start from *2.

PROCEDURE

1.

READ VALUE USING INTELLIGENT TESTER (DOOR KEY LOCK AND UNLOCK SWITCH) *1

(a) Check the DATA LIST for proper functioning of the door key lock and unlock operation.

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT DOOR KEY LOCK AND UNLOCK SWITCH *2

(a) Inspect the front door key lock and unlock switch 2007 MY LX470 [08/2006 -        ]; DOOR LOCK: FRONT DOOR LOCK: INSPECTION+ .

NG

REPLACE DOOR KEY LOCK AND UNLOCK SWITCH

OK

3.

CHECK WIRE HARNESS (SWITCH - BODY ECU (MAIN))
NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE