Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the intelligent tester main switch on.
4. Turn the clearance sonar main switch on.
5. Select the item below in the DATA LIST, and read its value displayed on the intelligent tester.

   AFS (AFS ECU) 

   DATA LIST
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   AFS OFF SW	AFS OFF switch signal ON / OFF	ON: AFS OFF switch pushed (ON) OFF: AFS OFF switch not pushed (OFF)	-

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

NG: Go to next step. 

HINT:

(See INSPECTION  )

NG: REPLACE AFS OFF SWITCH 

OK: Go to next step. 

1. Disconnect the A22 AFS ECU connector.
2. Disconnect the E5 AFS OFF switch connector.
3. Measure the resistance according to the value (s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   A22-32 (MSW) - E5-2	Always	Below 1 Ω
   E5-1 - Body ground	Always	Below 1 Ω
   A22-32 (MSW) - Body ground	Always	Below 1 Ω

Fig 1: Identifying E5 And A22 Connectors Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE AFS ECU