Lexus IS250 · Service Manual BODY

FAIL-SAFE CHART

System information


CHECK POWER WINDOW FAIL-SAFE FUNCTION

HINT:
If there is a malfunction in the power window system, some of the power window functions will be disabled.


Driver side power window:
Malfunctioning Part
 Disabled Function
 Operative Function
Pulse sensor circuit in power window motor
  1. AUTO UP/DOWN function
  2. Power window operation function after engine switch is turned off
  1. Manual UP (fully pulled UP position)
  2. Manual DOWN
  3. Remote (AUTO and manual)
  4. Remote function after engine switch turned off (AUTO and manual)
CPU in power window master switch
  1. AUTO UP/DOWN function
  2. Remote function (AUTO and manual)
  1. Manual UP (fully pulled UP position)
  2. Manual DOWN


Power windows except driver side power window:
Malfunctioning Part
 Disabled Function
 Operative Function
  1. Pulse sensor circuit in power window motor
  2. CPU in power window master switch
  3. Communication between master switch and each power window switch
  1. AUTO UP/DOWN function
  2. Power window operation function after engine switch is turned off
  1. Manual UP (fully pulled UP position)
  2. Manual DOWN

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