Lighting System Afs Off Switch Circuit

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Lighting. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK MULTIPLEX COMMUNICATION SYSTEM

PERFORM ACTIVE TEST BY INTELLIGENT TESTER

READ VALUE OF INTELLIGENT TESTER

CHECK SATELLITE SWITCH

LIGHTING SYSTEM - AFS OFF Switch Circuit


DESCRIPTION

The AFS OFF switch uses the multiplex communication system. First make sure that the multiplex communication system is functioning normally before performing troubleshooting on the AFS OFF switch.

WIRING DIAGRAM


Lexus Is250, Is220D. Gse20 Ale20.Lighting.Lighting System.Lighting System Afs Off Switch Circuit


INSPECTION PROCEDURE

1.CHECK MULTIPLEX COMMUNICATION SYSTEM
Refer to how to proceed with troubleshooting (Click here).
If the multiplex communication system is operating normally, proceed to the next step.

NEXT


2.PERFORM ACTIVE TEST BY INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the intelligent tester main switch on.

  1. Select the item(s) below in the ACTIVE TEST, and check the operation.

    ACTIVE TEST: Meter
    Item
    		Test Details
    		Diagnostic Note
    AFS Indicator
    		AFS OFF indicator light OFF / ON
    		-
    OK:
    AFS OFF indicator comes on.


NG
GO TO COMBINATION METER SYSTEM
OK


3.READ VALUE OF INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the intelligent tester main switch on.

  1. Select the item below in the DATA LIST, and read its value displayed on the intelligent tester.

    DATA LIST: AFS (AFS ECU)
    Item
    		Measurement / Range (Display)
    		Normal Condition
    		Diagnostic Note
    AFS OFF Switch
    		AFS ON / OFF setting
    		ON: AFS OFF
    OFF: AFS ON
    		-


OK
REPLACE AFS ECU
NG


4.CHECK SATELLITE SWITCH

  1. Check the operation speed of the satellite switch and the tach indicator system.

    OK:
    Tach indicator system operates normally.


NG
GO TO COMBINATION METER SYSTEM
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE