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Home >> Lexus >> 2003 >> SC 430 >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System - Diagnosis >> DTC B1231 Jam Protection Limit Switch Circuit On Driver Door, DTC B1232 Jam Protection Pulse Switch Circuit On Driver Door >> Inspection Procedure
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Inspection Procedure

  1. CHECK WIRE HARNESS (ECU <--> POWER WINDOW REGULATOR MOTOR ASSY LH) 
    1. Disconnect the D19 ECU and P15 power window motor LH connectors.
    2. Check the continuity between the connector terminals of the D 19 and P15.

      Standard: 

      Limit switch 

      LIMIT SWITCH CONTINUITY CONDITIONS REFERENCE

      Symbols (Terminal No.) Specified condition
      LMT (D19-10) <--> LMT (P15-2) Continuity
      SGND (D19-11) <--> E (P15-6) Continuity

      Pulse sensor 

      PULSE SENSOR CONTINUITY CONDITIONS REFERENCE

      Symbols (Terminal No.) Specified condition
      PLS (D19-21) <--> PLS (P15-5) Continuity
      SGND (D19-11) <--> E (P15-6) Continuity
      Fig 1: Checking Wire Harness (ECU)
      G03370793Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE HARNESS CONNECTOR 
    2. OK: REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH 
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