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Home >> Lexus >> 2002 >> SC 430 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock Control System - Diagnosis >> Key Confinement Prevention Function Does Not Work Properly (Courtesy Lamp Switch Circuit) >> Inspection Procedure

Inspection Procedure

  1. CHECK COURTESY LAMP 
    1. Check the at the door open light will be on when the driver's door is opened.
    1. OK: REPLACE THEFT WARNING ECU ASSY 
    2. NG: GO TO NEXT STEP 
  2. CHECK MULTIPLEX NETWORK DOOR ECU FRONT LH 
    1. Connect the tester lead to the multiplex network door ECU front LH connector D17 terminal 27 and connector D19 terminal 1.
      Fig 1: Connecting Tester Lead To Multiplex Network Door ECU Front LH Connector D17 Terminal 27 & Connector D19 Terminal 1
      G03386980Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard: 10-14 V 

    1. NG: REPLACE MULTIPLEX NETWORK DOOR ECU /\ FRONT LH 
    2. OK: GO TO NEXT STEP 
  3. CHECK WIRE HARNESS 
    1. Disconnect the multiplex network door ECU front LH connector D17 and the front door courtesy lamp switch connector D8 check the connector on the wire harness side.
      Fig 2: Identifying Connector D8 & D17
      G03386981Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the tester lead to the multiplex network door ECU front LH connector D17 terminal 27 and the front door courtesy lamp switch connector terminal 1.

      Standard: 10-14 V 

    1. NG: REPAIR OR REPLACE WIRE HARNESS 
    2. OK: GO TO NEXT STEP 
  4. INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY 
    1. NG: REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY 
    2. OK: REPLACE TRANSPONDER KEY ECU ASSY 
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