Thursday, July 2, 2020

2010 Lexus Truck RX 350 AWD V6-3.5L (2GR-FE) B CODE Page 124


1. REPLACE USB DEVICE OR "iPod"



(a) Disconnect the USB device or "iPod" from the No. 1 stereo jack adapter assembly.



(b) Turn the engine switch off.



HINT



When this DTC has been stored, it is necessary to turn off the engine switch to make it possible for the vehicle to recognize a new



device when it is connected.



(c) Turn the engine switch on (ACC).



(d) Connect a known good USB device or "iPod" to the No. 1 stereo jack adapter assembly.



HINT



* If the malfunction occurred when a USB device was in use, use another USB device for the inspection. If the malfunction



occurred when an "iPod" was in use, use another "iPod" for the inspection.



NEXT -- Continue to next step.



2. CLEAR DTC



(a) Clear the DTCs See: Accessories and Optional Equipment/Radio, Stereo, and Compact Disc/Testing and Inspection/Reading and



Clearing Diagnostic Trouble Codes/Audio and Visual System (w/ Navigation System).



NEXT -- Continue to next step.



3. RECHECK FOR DTC



(a) Recheck for DTCs.



HINT



If DTCs are detected frequently, replace the multi-media interface ECU.



OK:



No DTC is output.



NG -- REPLACE MULTI-MEDIA INTERFACE ECU See: Accessories and Optional Equipment/Entertainment



Systems/Entertainment System Control Module/Service and Repair/Multi-Media Interface ECU/Removal



OK -- USB DEVICE OR "iPod" WAS DEFECTIVE



Up to 08/2009



NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (for DVD): B15D0: MOST Communication Malfunction



B15D0 - MOST Communication Malfunction



DESCRIPTION



* This DTC is stored when the MOST network cannot be established after the master unit is activated.



HINT



* If a short occurs in a speaker circuit, the sound from the corresponding speaker will be low or almost impossible to hear. If the



volume is turned up in this situation, to prevent excessive current flow due to the short circuit, the stereo component amplifier



assembly stops operating when its output exceeds a certain level. When the operation of the stereo component amplifier



assembly stops, the navigation system will not function normally. This is because MOST communication will stop due to the



shut down of the amplifier causing an error in the MOST network. The stereo component amplifier assembly will start



operating again when the engine switch is turned off and back on (ACC) again. However, the amplifier will stop operating



again if its output exceeds a certain level. (for 15 speakers)



* When the stereo component amplifier assembly stops operating and a malfunction occurs in the navigation system due to a



short in a speaker circuit, this DTC will be stored. (for 15 speakers)

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