How To Proceed With Troubleshooting
WARNING: This page is about a different car, the 2007 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
Use these procedures to troubleshoot the rear sunshade system.
- VEHICLE BROUGHT TO WORKSHOP
- INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
- INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM
- Use the intelligent tester to check if the CAN communication system is functioning normally.
Result
RESULT REFERENCEResult Proceed to CAN DTC is not output A CAN DTC is output B
B: Go to CAN COMMUNICATION SYSTEM
A: Go to Next Step
- Use the intelligent tester to check if the CAN communication system is functioning normally.
- PROBLEM SYMPTOMS TABLE
- Refer to the PROBLEM SYMPTOMS TABLE
Result
RESULT REFERENCEResult Proceed to Fault not listed in problem symptoms table A Fault listed in problem symptoms table B
B: Go to step 6
A: Go to Next Step
- Refer to the PROBLEM SYMPTOMS TABLE
- OVERALL ANALYSIS AND TROUBLESHOOTING
- Terminals of ECU (TERMINALS OF ECU )
- 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 )
- REPAIR OR REPLACE
- CONFIRMATION TEST
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