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Home >> Lexus >> 2005 >> LS 430 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Wireless Door Lock Control System (W/O Smart Key) - Diagnostics >> Wireless Door Lock Control System (W/O Smart Key System) >> Wireless Door Lock Buzzer Circuit >> Circuit Description

Circuit Description

When the answer-back function does not operate even though the wireless door LOCK/UNLOCK function is operating, the theft warning ECU's (theft deterrent ECU's) wireless door lock buzzer outputs may be abnormal.

NOTE: Before troubleshooting, confirm that the wireless door lock buzzer controller switch is not set to OFF and that the wireless buzzer volume is not OFF.
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