Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM0000018BK005X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: LIGHTING: LIGHTING SYSTEM: Unlock Warning Switch Circuit; 2007 MY LX470 [08/2006 -        ]

Unlock Warning Switch Circuit

DESCRIPTION

  • The key unlock warning switch comes on the ignition key is inserted in the key cylinder and goes off when the ignition key is removed. The ECU operates the key confinement prevention function while the key unlock warning switch is ON.

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

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

PROCEDURE

1.

READ VALUE USING INTELLIGENT TESTER (UNLOCK WARNING SWITCH)*1

(a) Connect the intelligent tester (with CAN VIM) to the DLC3.

(b) Check that the unlock warning switch operate in DATA LIST 2007 MY LX470 [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: DATA LIST / ACTIVE TEST .

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT UNLOCK WARNING SWITCH ASSEMBLY*2

(a) Inspect unlock warning switch 2007 MY LX470 [08/2006 -        ]; ENGINE IMMOBILISER: UNLOCK WARNING SWITCH: INSPECTION .

NG

REPLACE UNLOCK WARNING SWITCH ASSEMBLY

OK

3.

CHECK WIRE HARNESS (KEY UNLOCK WARNING SWITCH - BODY ECU (MAIN))
NG

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE