Last Modified: 4-30-2014 6.6 D Doc ID: RM000001B6B000X
Model Year: 2006 Model: LX470 Prod Date Range: [05/2005 -           ]
Title: WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2006 MY LX470 [05/2005 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use these procedures to troubleshoot the power window control system.
  • *: Use the intelligent tester.

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

  • If the voltage is below 11 V, recharge or replace the battery before proceeding.
NEXT

3.

INSPECT COMMUNICATION FUNCTION OF LARGE-SCALE MULTIPLEX COMMUNICATION SYSTEM (BEAN)*

(a) Using the intelligent tester, check if the Multiplex Communication System (MPX) is functioning normally 2006 MY LX470 [05/2005 -        ]; WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: DTC CHECK / CLEAR .

Result:

Result

Proceed to

MPX DTC is not output

A

MPX DTC is output

B
B

Go to MULTIPLEX COMMUNICATION SECTION

A

4.

PROBLEM SYMPTOMS TABLE

Result:

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

B
B

Go to step 6
A

5.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) DATA LIST / ACTIVE TEST 2006 MY LX470 [05/2005 -        ]; WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: DATA LIST / ACTIVE TEST

(b) Terminals of ECU 2006 MY LX470 [05/2005 -        ]; WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: TERMINALS OF ECU

(c) On-vehicle Inspection 2006 MY LX470 [05/2005 -        ]; WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: ON-VEHICLE INSPECTION

(d) Inspection

(1) Power window regulator motor assembly 2006 MY LX470 [05/2005 -        ]; WINDSHIELD / WINDOWGLASS: POWER WINDOW REGULATOR MOTOR: INSPECTION

NEXT

6.

REPAIR OR REPLACE
NEXT

7.

CONFIRMATION TEST
NEXT

END