LIGHTING SYSTEM > Overhead Console Illumination Light Circuit

for Preparation Click here


DESCRIPTION

The main body ECU (multiplex network body ECU) controls the center console spot light.

WIRING DIAGRAM


E220201E02


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 center console spot lights come on.

    Main Body 
    Tester Display
    		Test Part
    		Control Range
    		Diagnostic Note
    Center Console Spot LGT
    		Center console spot lights (red, blue)
    		ON/OFF
    		Power switch off

    OK:
    Center console spot lights come on.



NG
Go to step 2
OK

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

2.INSPECT MAP LIGHT ASSEMBLY


    E220206E03

  1. Remove the map light assembly (Click here).

  1. Connect a positive (+) lead from the auxiliary battery to terminal 21 (+B1) and a negative (-) lead to terminal 5 (ILLB).

  1. Check that the center console spot light (red) comes on.

  1. Connect a positive (+) lead from the auxiliary battery to terminal 21 (+B1) and a negative (-) lead to terminal 6 (ILLB).

  1. Check that the center console spot light (blue) comes on.

    OK:
    Each center console spot light comes on.

    Text in Illustration 
    *a
    		Component without harness connected
    (Map Light Assembly)



NG
REPLACE MAP LIGHT ASSEMBLY (Click here)
OK


3.CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAIN BODY ECU AND AUXILIARY BATTERY)

  1. Disconnect the T6 map light assembly connector.

  1. Disconnect the H18 main body ECU (multiplex network body ECU) connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    T6-6 (ILLB) - H18-2 (CSPT)
    		Always
    		Below 1 Ω
    T6-6 (ILLB) - Body ground
    		Always
    		10 kΩ or higher
    T6-5 (ILLB) - H18-6 (OSPT)
    		Always
    		Below 1 Ω
    T6-5 (ILLB) - Body ground
    		Always
    		10 kΩ or higher

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    T6-21 (+B1) - Body ground
    		Power switch off
    		11 to 14 V



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

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