NX200T Error code B15D0 and B15D3?

2015 LEXUS NX 200T

267,030 MILES • 2.0L • 4 CYL • TURBO • 4WD • AUTOMATIC

SYEDMA

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3 POSTS
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Car Stereo is turning on, all features operating without any issue except these 3 as below.
1. Radio broadcast FM, AM and channels are showing on display but unable to select or tune the channels.

2. Bluetooth connecting and display screen showing the list and playing track details but no sound at all.
No sound in Aux, Radio, Bluetooth, or any other media.

3. No volume gauge values are showing at all.
I will share image and video once we start to communicate thanks and looking forward to hear from you.

Jun 19, 2024 at 4:59 PM

JACOBANDNICKOLAS

CERTIFIED EXPERT
110,175 POSTS

Hi,

The first code, B15D0 usually is set when there is a short to one of the speakers. The system is designed to prevent damage to the tuner or amp by removing power to the speakers. When you turn the radio on, can you hear any noise at all?

The B15D3 is related to the communication between the tuner and the audio amp. This DTC is stored when an AVC-LAN communication error occurs between the radio receiver assembly and stereo component amplifier assembly. Since it appears you have lost control at the tuner, I suspect that is where the issue is.

However, to diagnose it properly, I need to know if it is an 8-speaker system or not. See pic below. Let me know.

Take care,

Joe

See pic below.

Image (Click to enlarge)

Jun 19, 2024 at 7:59 PM

SYEDMA

MEMBER
3 POSTS

Yes, it's the same as you've mentioned.

Jun 19, 2024 at 8:40 PM

SYEDMA

MEMBER
3 POSTS

Moreover, I just tried to diagnose and found further error codes as below.
B15D0
B15D3
B1563
U0100
Note: please, note that there is a dim circle in the middle of the display i forgot to mention earlier and also forgot to answer your question yes there is no sound at all.

Image (Click to enlarge)

Jun 19, 2024 at 9:01 PM

JACOBANDNICKOLAS

CERTIFIED EXPERT
110,175 POSTS

Hi,

We have several codes that seem to lead me to believe there may be an issue with the wiring itself. I'm not sure how much help I'll be from here, but I'll give it a shot.

After reviewing the codes you provided, I attached the diagnostics below B153D. This is where I would start because it checks power and communication lines between the tuner and amp. Additionally, it will also check the components. Take a look and let me know if this is something you are comfortable performing.

Take care,

Joe

See pics below.

Images (Click to enlarge)

Jun 21, 2024 at 7:50 PM