Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT AFS OFF SWITCH

Disconnect the AFS OFF switch connector.

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

Resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester connection	Condition	Specified resistance
1 - 2	AFS OFF switch is pushed	Below 1 Ω
1 - 2	AFS OFF switch is not pushed	10 kΩ or higher

NG: REPLACE AFS OFF SWITCH

OK: Go to Next step

INSPECT AFS ECU

Disconnect the AFS ECU connector.

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

Fig 1: Identifying A14 AFS ECU Connector Terminals

Resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester connection	Condition	Specified condition
A14-4 - Body ground	AFS OFF switch is pushed	Below 1 Ω
A14-4 - Body ground	AFS OFF switch is not pushed	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

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