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Home >> Lexus >> 2007 >> RX 400h FWD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Lighting >> Lighting System >> Door Courtesy Switch Circuit >> Inspection Procedure

Inspection Procedure

  1. READ VALUE OF INTELLIGENT TESTER 
    1. Connect the intelligent tester to the DLC3.
    2. Turn the ignition switch to the ON position and press the intelligent tester main switch ON.
    3. Select the items below in the DATA LIST, and read the displays on the intelligent tester.

    BODY 

    NORMAL CONDITION CHART

    Item Measurement Item/ Display (Range) Normal Condition Diagnostic Note
    D DOR CTY SW Driver's door courtesy SW signal/ON or OFF OK ON: Driver's door is open
    OFF: Driver's door is closed    		 -
    P DOR CYT SW Passenger's door courtesy SW signal/ON or OFF ON: Front passenger door is open
    OFF: Front passenger door is closed    		 -
    Rr DOR CTY SW Rear slide door courtesy SW signal/ON or OFF ON: Either right or left rear door is open
    OFF: Both the right and left doors are closed    		 -

    NG: GO TO step   2 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

  2. INSPECT COURTESY LIGHT SWITCH 
    1. Inspect front door courtesy switch (See FRONT DOOR COURTESY SWITCH ).
    2. Inspect rear door courtesy switch (See REAR DOOR COURTESY SWITCH ).

    NG: REPLACE COURTESY LIGHT SWITCH 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (COURTESY LIGHT SWITCH - INSTRUMENT PANEL J/B ASSEMBLY) 
    1. Disconnect the 1O, B5 and B6 connectors from the instrument panel junction block assembly.
    2. Measure the resistance according to the value(s) in the table below.
    Fig 1: Identifying Instrument Panel Junction Block Assembly And Multiplex Network Body ECU Connector Terminals
    G05273834Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Resistance 

    TESTER CONNECTION SPECIFIED CONDITION REFERENCE CHART

    Tester connection Condition Specified condition
    B6-14 - Body ground Front driver door is OPEN
    Front driver door is CLOSE    		 Below 1 Ω
    10 kΩ or higher
    B5-23 - Body ground Front passenger door is OPEN
    Front passenger door is CLOSE    		 Below 1 Ω
    10 kΩ or higher
    10-7 - Body ground Rear LH door is OPEN
    Rear LH door is CLOSE    		 Below 1 Ω
    10 kΩ or higher
    B6-16 - Body ground Rear RH door is OPEN
    Rear RH door is CLOSE    		 Below 1 Ω
    10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

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