2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) Page 636

INSPECTION PROCEDURE

PROCEDURE

1. CHECK DTC

(a) Disconnect the stereo component amplifier assembly connector O17*1 or O34*2 and disconnect connector O16.

*1: for 12 Speakers

*2: for 9 Speakers

(b) Clear the DTCs and recheck for DTCs.

(c) Check if DTC 74-40 is output.

OK:

DTC 74-40 is not output.

NG -- REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY See: Accessories and Optional Equipment/Radio, Stereo,

and Compact Disc/Amplifier/Service and Repair/Removal

OK -- Continue to next step.

2. CHECK OPERATION

(a) Reconnect stereo component amplifier assembly connector O17*1 or O34*2.

*1: for 12 Speakers

*2: for 9 Speakers

(b) Check if DTC 74-40 is output.

OK:

DTC 74-40 is not output.

NG -- CHECK HARNESS AND CONNECTOR

OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR

(a) Disconnect the connectors shown in the illustration from the stereo component amplifier assembly and speakers.