2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 301

(a) Disconnect the A53 AFS ECU (headlight swivel ECU assembly) connector.

(b) Disconnect the T5 inner rear view mirror assembly connector.

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

Standard Resistance:

Text in Illustration

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- Continue to next step.

3. INSPECT AFS ECU (HEADLIGHT SWIVEL ECU ASSEMBLY)

(a) Reconnect the A53 AFS ECU (headlight swivel ECU assembly) connector.

(b) Connect an oscilloscope to the T5 inner rear view mirror assembly connector.

(c) Check the waveform.