How To Proceed With Troubleshooting

2009 Lexus ES 350 V6-3.5L (2GR-FE)SECTION How To Proceed With Troubleshooting







INTERIOR: REAR SUNSHADE SYSTEM:

HOW TO PROCEED WITH TROUBLESHOOTING

Use these procedures to troubleshoot the rear sunshade system.
1. VEHICLE BROUGHT TO WORKSHOP
NEXT -- Continue to next step.
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 -- Continue to next step.
3. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM
(a) Use Techstream to check if the CAN communication system is functioning normally.
Result:






B -- Go to CAN COMMUNICATION SYSTEM
A -- Continue to next step.
4. PROBLEM SYMPTOMS TABLE
(a) Refer to the problem symptoms table Problem Symptoms Table.
Result:






B -- Go to step 6
A -- Continue to next step.
5. OVERALL ANALYSIS AND TROUBLESHOOTING
(a) TERMINALS OF ECU Pinout Values and Diagnostic Parameters
(b) CIRCUIT INSPECTION Rear Sunshade Does Not Operate With Rear Sunshade Switch, Rear Sunshade Shift-Linked Function Does Not Operate When Shift Lever Is Moved To R Position)
NEXT -- Continue to next step.
6. REPAIR OR REPLACE
NEXT -- Continue to next step.
7. CONFIRMATION TEST
NEXT -- END
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.