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Home >> Lexus >> 2003 >> GX 470 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> LEXUS Link System - Diagnosis >> DTC 2 (Two) "Code 2. Button Module Failure" >> Circuit Description

Circuit Description

The telephone switch assy (mayday switch) is provided on the roof console box assy and the system is activated by operating a button.

DTC DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
2 Switch has been stuck or held down intentionally for 15 sec. or more
  • Telephone switch assy (Mayday switch)
  • Telephone ECU assy (Mayday ECU)
  • Wire harness
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