Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM000001B6B004X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING; 2007 MY LX470 [08/2006 -        ]

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
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2.

INSPECT BATTERY VOLTAGE

Standard voltage:

11 to 14 V

  • If the voltage is below 11 V, recharge or replace the battery before proceeding.
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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 2007 MY LX470 [08/2006 -        ]; 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 2007 MY LX470 [08/2006 -        ]; WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: DATA LIST / ACTIVE TEST

(b) Terminals of ECU 2007 MY LX470 [08/2006 -        ]; WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: TERMINALS OF ECU

(c) On-vehicle Inspection 2007 MY LX470 [08/2006 -        ]; WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: ON-VEHICLE INSPECTION

(d) Inspection

(1) Power window regulator motor assembly 2007 MY LX470 [08/2006 -        ]; WINDSHIELD / WINDOWGLASS: POWER WINDOW REGULATOR MOTOR: INSPECTION

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6.

REPAIR OR REPLACE
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7.

CONFIRMATION TEST
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END