LIGHTING SYSTEM > Door Courtesy Switch Circuit

for Preparation Click here


DESCRIPTION

The body ECU detects the condition of the door courtesy switch assembly.

WIRING DIAGRAM


B113753E01


INSPECTION PROCEDURE

1.READ VALUE OF INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position and press the intelligent tester main switch ON.

  1. Select the items below in the DATA LIST, and read the displays on the intelligent tester.

    BODY NO.1: 
    Item
    		Measurement Item/
    Display (Range)
    		Normal Condition
    		Diagnostic Note
    D Door Courtesy SW
    		Driver's door courtesy SW signal/ON or OFF OK
    		ON: Driver's door is open
    OFF: Driver's door is closed
    		-
    Rear Door Courtesy SW
    		Rear 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 the front door courtesy switch (Click here).

  1. Inspect the rear door courtesy switch (Click here).



NG
REPLACE COURTESY LIGHT SWITCH
OK


3.CHECK HARNESS AND CONNECTOR (COURTESY LIGHT SWITCH - INSTRUMENT PANEL J/B ASSEMBLY)

  1. Disconnect the 1O, B5 and B7 connectors from the instrument panel junction block assembly.



  1. Measure the resistance according to the value(s) in the table below.


    E111818E05


    Resistance:

    Tester connection
    		Condition
    		Specified condition
    B5-14 - Body ground (*1)
    B7-23 - Body ground (*2)
    		Front LH door is OPEN
    Front LH door is CLOSE
    		Below 1 Ω
    10 kΩ or higher
    B7-23 - Body ground (*1)
    B5-14 - Body ground (*2)
    		Front RH door is OPEN
    Front RH door is CLOSE
    		Below 1 Ω
    10 kΩ or higher
    1O-7 - Body ground
    		Rear LH door is OPEN
    Rear LH door is CLOSE
    		Below 1 Ω
    10 kΩ or higher
    B5-16 - Body ground
    		Rear RH door is OPEN
    Rear RH door is CLOSE
    		Below 1 Ω
    10 kΩ or higher

    *1: LHD
    *2: RHD



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE