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 troubleshooting the AFS OFF switch.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

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

PERFORM ACTIVE TEST USING INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Combination Meter / Active Test.

Check the operation.

Combination Meter
Tester Display	Test Part	Control Range	Diagnostic Note
Indicat. AFS	AFS ON/OFF indicator light	ON/OFF	-

OK
AFS ON/OFF indicator comes on.

NG

GO TO COMBINATION METER SYSTEM Click here

OK

READ VALUE USING INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Turn the intelligent tester on.
Turn the clearance sonar main switch on.
Enter the following menus: Body / AFS / Data List.

Read the display on the intelligent tester.

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

OK
Normal conditions listed above are displayed.

NG

CHECK SATELLITE SWITCH Click here

OK

REPLACE AFS ECU Click here

CHECK SATELLITE SWITCH
1. By using the satellite switch (RH switch, ON/OFF switch, LH switch), check the AFS ON/OFF indicator comes on Click here.
  
  OK
  
  AFS ON/OFF indicator comes on.
NG
GO TO COMBINATION METER SYSTEM Click here

OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here

LIGHTING SYSTEM AFS OFF Switch Circuit