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Last Modified: 11-27-2007 1.6 D
Service Category: Vehicle Interior Section: Meter/Gauge/Display
Model Year: 2008 Model: LX570 Doc ID: RM000002Z4L003X
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING (2008 LX570)

HOW TO PROCEED WITH TROUBLESHOOTING

HINT:

  • Use these procedures to troubleshoot the meter/gauge system.
  • *: Use the Techstream.

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.

CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

(b) Clear the DTCs METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: DTC CHECK / CLEAR (2008 LX570) .

(c) Recheck for DTCs. Based on the DTCs output above, try to force output of the same CAN communication system DTC or meter/gauge system DTC by simulating the symptoms indicated by the DTC.

Result

Result

Proceed to

DTC is not output

A

CAN communication system DTC is output

B

Meter/gauge system DTC is output

C
B

Go to CAN COMMUNICATION SYSTEM

C

Go to DIAGNOSTIC TROUBLE CODE CHART

A

4.

PROBLEM SYMPTOMS TABLE

(a) Refer to the Problem Symptoms Table METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: PROBLEM SYMPTOMS TABLE (2008 LX570) .

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 7
A

5.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Terminals of ECU METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: TERMINALS OF ECU (2008 LX570)

(b) Data List / Active Test METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: DATA LIST / ACTIVE TEST (2008 LX570)

(c) Operation Check METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: OPERATION CHECK (2008 LX570)

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6.

REPAIR OR REPLACE
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7.

CONFIRMATION TEST
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END