2007 Toyota Land CruiserFACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code Table

DIAGNOSTIC TROUBLE CODE TABLE

DTC No. Detection Item Trouble Area
B1221Β  Power Window Switch Circuit on Driver Door
  • - Power window regulator master switch assembly
  • - Wire harness
B1222Β  Door Lock Switch Circuit on Driver Door
  • - Door lock control switch
  • - Door key lock and unlock switch
  • - Wire harness
B1231Β  Jam Protection Limit Switch Circuit on Driver Door
  • - Front power window regulator motor assembly LH (jam protection limit switch)
  • - Power window regulator master switch assembly
  • - Wire harness
B1232Β  Jam Protection Pulse Switch Circuit on Driver Door
  • - Power window regulator motor assembly (jam protection pulse switch)
  • - Power window regulator master switch assembly
  • - Wire harness
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.