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Home >> Lexus >> 2017 >> GS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Wiper System / Washer System - Diagnostics >> Wiper And Washer System >> Problem Symptoms Table [10/2015 - ] >> Problem Symptoms Table [10/2015 - ]

Problem Symptoms Table [10/2015 - ]

NOTE:

If the main body ECU (multiplex network body ECU) is replaced, refer to Registration (Refer to REGISTRATION [10/2015 - ] ).

HINT: 

WIPER AND WASHER (W/O RAIN SENSOR)

Symptom Suspected Area Reference
Wipers do not operate at all Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Windshield wiper motor assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
Wipers do not operate in INT Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Windshield wiper motor assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
Wipers do not operate in LO or MIST Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Windshield wiper motor assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
Wipers do not operate in HI Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Windshield wiper motor assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
When the wiper switch is in INT position, the wiper operation timing does not change CAN communication system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]
Spiral with sensor cable sub-assembly Refer to INSPECTION [09/2014 - 09/2016] or refer to INSPECTION [09/2016 - ]
Brake actuator assembly Refer to REMOVAL [10/2015 - ]
Windshield wiper switch assembly Refer to REMOVAL [10/2015 - ]
Harness or connector -
Washer does not operate Washer fluid -
Washer hose and/or washer nozzle sub-assembly Refer to ON-VEHICLE INSPECTION [09/2014 - ]
Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Windshield washer motor and pump assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
"Low Washer Fluid" is displayed on the multi-information display Washer fluid -
Level warning switch assembly Refer to INSPECTION [09/2014 - ]
Combination meter assembly Refer to REMOVAL [09/2014 - ]
Harness or connector -
Wipers do not operate when the washer switch is on Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
When the wiper switch is off, the wiper blades do not park or park in the wrong position Windshield wiper motor assembly (wiper arm installation position) Refer to ON-VEHICLE INSPECTION [09/2014 - ]
Windshield wiper motor assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
WIPER AND WASHER (W/ RAIN SENSOR)

Symptom Suspected Area Reference
Front wipers do not operate at all Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Windshield wiper motor assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
Wipers do not operate in LO or MIST Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Windshield wiper motor assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
Wipers do not operate in HI Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Windshield wiper motor assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
Wipers do not operate in AUTO Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
LIN communication system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ]
Map light assembly Refer to INSPECTION [10/2015 - ]
Rain sensor Refer to ON-VEHICLE INSPECTION [09/2014 - ]
Harness or connector -
When the AUTO wiper ON/OFF switch is ON, the rain sensor sensitivity and wiper operation timing could not be adjusted by the auto sensitivity adjustment Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
LIN communication system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ]
CAN communication system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ]
Spiral with sensor cable sub-assembly Refer to INSPECTION [09/2014 - 09/2016] or refer to INSPECTION [09/2016 - ]
Brake actuator assembly Refer to ON-VEHICLE INSPECTION [10/2015 - ]
Harness or connector -
When the AUTO wiper ON/OFF switch is ON, auto wiper indicator does not illuminate Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Main body ECU (multiplex network body ECU) Refer to REMOVAL [09/2014 - ]
Cowl side junction block LH Refer to REMOVAL [09/2014 - ]
Lighting system Refer to HOW TO PROCEED WITH TROUBLESHOOTING [09/2014 - ]
Harness or connector -
Washer motor does not operate Washer fluid -
Washer hose and/or washer nozzle sub-assembly Refer to ON-VEHICLE INSPECTION [09/2014 - ]
Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Windshield washer motor and pump assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
"Low Washer Fluid" is displayed on the multi-information display Washer fluid -
Level warning switch assembly Refer to INSPECTION [09/2014 - ]
Combination meter assembly Refer to REMOVAL [09/2014 - ]
Harness or connector -
Wipers do not operate when the washer switch is on Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
When the wiper switch is off, the wiper blades do not park or park in the wrong position Windshield wiper motor assembly (wiper arm installation position) Refer to ON-VEHICLE INSPECTION [09/2014 - ]
Windshield wiper motor assembly Refer to INSPECTION [09/2014 - ]
Harness or connector -
HEADLIGHT CLEANER (W/ HEADLIGHT CLEANER)

Symptom Suspected Area Reference
Headlight cleaner system does not operate when the headlight cleaner switch is operated Headlight cleaner hose and/or headlight cleaner washer nozzle cover -
Headlight cleaner control relay Refer to ON-VEHICLE INSPECTION [10/2015 - ]
Headlight cleaner motor and pump assembly Refer to INSPECTION [09/2014 - ]
Headlight washer actuator sub-assembly LH and/or RH Refer to REMOVAL [10/2015 - ]
Headlight ECU sub-assembly Refer to REMOVAL [10/2015 - 09/2017] or refer to REMOVAL [09/2017 - ]
Harness or connector -
Headlight cleaner system does not operate when the front washer switch is first operated Windshield wiper switch assembly Refer to INSPECTION [09/2014 - ]
Headlight cleaner control relay Refer to ON-VEHICLE INSPECTION [10/2015 - ]
Harness or connector -