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Home >> Lexus >> 2012 >> IS 250C Standard Trans >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System (Diagnostics & Symptom Tests) >> Power Window Control System >> Symptom Tests >> Power Windows cannot be Operated with All Window Switch >> Description
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Power Windows cannot be Operated with All Window Switch: Description

The sliding roof control ECU assembly sends the all window switch (sliding roof switch assembly) operation signal via BEAN communication to the power window regulator master switch assembly and power window regulator switch assembly when the engine switch is on (IG). Upon receiving the signal, the power window regulator master switch assembly operates the power window regulator motor assembly (for driver side), the power window regulator switch assembly operates the power window regulator motor assembly (for front passenger side), and the sliding roof control ECU assembly operates the power window regulator motor assembly LH (for quarter) and power window regulator motor assembly RH (for quarter).