Code
ADSP_W017
TESLA
Tesla Alert
Usb Rx Underrun
AI status
Completed
Completed
100%
Causes
- Faulty or incompatible USB device (phone, flash drive, DAC)
- Damaged or poor-quality USB cable or connector
- Insufficient USB power or intermittent power to the device
- Corrupted media/files or unsupported file formats/bit rates
- Infotainment software/firmware bug or driver issue
- High CPU or bus load starving USB transfers
Symptoms
- Intermittent audio dropouts, skips or stuttering when playing from USB
- “USB disconnected” or similar infotainment warnings/messages
- Loss of music or voice call audio while connected via USB
- Repeated logs/errors referencing USB RX underrun or ADSP warnings
- Infotainment system may reset or reload audio subsystem in severe cases
What to check
- Try the same USB device and cable in another vehicle or PC to verify device behavior
- Try a known-good USB device and cable in the vehicle to reproduce or rule out device/cable
- Inspect USB port and connector for damage, debris, or corrosion
- Check infotainment software/firmware version and recent update history
- Swap USB port (if multiple) or remove any hubs/extension adapters
- Test with small, known-good media files (low bitrate MP3/AAC) vs. large/high-bitrate files
Signal parameters
- USB 5.0 V supply voltage and ripple/current draw
- USB transfer type (bulk/isochronous) and endpoint number involved
- Packet/transfer size and expected interval (ms)
- Buffer fill level and underrun counter values from logs
- CPU/IPC load on audio processor during playback
- USB error counters: CRC, NAK, STALL, transfer errors
Diagnostic algorithm
- Reproduce the fault reliably: note device type, file type, time and USB port used.
- Swap to a known-good USB cable and device; retest to isolate the vehicle vs. accessory.
- Try different USB ports and remove any adapters/hubs; if problem stops, suspect adapter/port.
- Update infotainment/ADSP firmware to latest approved version and re-test.
- Reformat USB flash drive to recommended filesystem (FAT32/exFAT as specified by vehicle) and reload test files.
- Check service logs: record underrun counts, related error codes, and timestamps to correlate with user actions.
- Inspect and clean USB connectors; if mechanical damage is found, replace the USB port or USB interface board.
- If power issues suspected, measure USB 5 V rail under load and compare to specification; inspect power supply components.
- If hardware and accessory swaps do not eliminate the issue, capture USB traffic with a protocol analyzer (or use vehicle diagnostic captures) to confirm packet timing and missing packets.
- Replace the USB interface module or ADSP/USB controller hardware only after confirming issue is not accessory or software-related and logs indicate hardware faults.
Likely causes
- Intermittent connection from worn/dirty USB connector
- Bad or incompatible phone/adapter (especially USB-C adapters)
- Large or poorly formatted USB flash drive (filesystem errors)
- Software/firmware regression after an update
- Weak 5V supply on the USB rail under load
Fault status
Status
USB RX underrun detected by ADSP — incoming USB audio stream underflowed (data not received in time). Verify accessory, cable, port, and infotainment software.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
Similar codes
Repair manuals
Manual library for TESLA
81
Browse 81 TESLA manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.
TESLA
-
TESLA: 2024
-
Model 3
-
Model S
-
Model X
-
Model Y
-
-
TESLA: 2023
-
Model 3
-
Model S
-
Model X
-
Model Y
-
-
TESLA: 2022
-
Model 3
-
Model S
-
Model X
-
Model Y
-
-
TESLA: 2021
-
Model 3
-
Model S
-
Model X
-
-
TESLA: 2020
-
Model S
-
Model X
-
TESLA: 2019
-
Model S
-
Model X
Your experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email