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LIGHTING SYSTEM > Footwell Light Circuit

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DESCRIPTION

The main body ECU (multiplex network ECU) control the footwell lights.

WIRING DIAGRAM


E190873E02


INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Turn the intelligent tester on.

  1. Enter the following menus: Body / Main Body / Active Test.

  1. Check that the foot lights come on.

    Main Body 
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Step Light Operation
    		Footwell lights
    		ON/OFF
    		-

    OK:
    Footwell lights come on.



NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)  

2.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY)


    E173019E03

  1. Disconnect the 2B instrument panel junction block assembly connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    2B-17 - Body ground
    		Always
    		11 to 14 V
    2B-18 - Body ground
    		Always
    		11 to 14 V

    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Instrument Panel Junction Block Assembly)



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    E182487E03

  1. Remove the instrument panel junction block assembly.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    2B-17 - A-26 (FSPT)
    		Always
    		Below 1 Ω
    2B-18 - A-26 (FSPT)
    		Always
    		Below 1 Ω
    A-26 - Body ground
    		Always
    		10 kΩ or higher

    Text in Illustration 
    *1
    		Component without harness connected
    (Instrument Panel Junction Block Assembly)



NG
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (Click here)