Inspection Procedure

Fig 1: Identifying AFS OFF Switch And AFS ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the A32 switch connector.
2. Disconnect the A31 ECU connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Specified Condition
   A32-3 - A31-4 (MSW)	Below 1 Ω
   A32-4 - Body ground	Below 1 Ω
   A32-3 - Body ground	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to Next step 

Fig 2: Identifying AFS OFF Switch Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the AFS OFF switch.
2. Measure the resistance of the switch.

   Standard resistance 

   RESISTANCE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   3 - 4	AFS OFF switch is pushed	Below 1 Ω
   3 - 4	AFS OFF switch is not pushed	10 kΩ or higher

NG: REPLACE AFS OFF SWITCH 

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE