U0193

Lost Communication With Digital Audio Control Module A

Q: Is it safe to drive with U0193?

Yes. It's an audio-system fault only and doesn't affect how the vehicle drives, steers, or brakes.

Q: Can I just clear U0193?

You can try, and a one-off glitch may not return. If the module has a wiring or hardware fault, the code and the loss of audio will come back.

Communication network / audio Generic OBD-II Low

What it means

U0193 means the vehicle has lost communication with digital audio control module "A" — the amplifier/processor behind the sound system. When it goes offline you typically lose audio or radio functions, but nothing about how the car drives is affected. The cause is normally a wiring, connector, power/ground, software, or bus fault at the module, and it's a low-priority, comfort-only issue.

Low

Can I keep driving? Yes — this only affects the audio system. The car drives normally; you'll likely lose sound or radio functions until it's repaired.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

No audio, or sound that cuts in and out
Radio or media system errors or unresponsiveness
Infotainment display messages
Scan tool can't reach the digital audio control module

Common causes

Most likely first

Wiring or connector fault at the audio moduleLikely
Power or ground problem to the moduleCommon
Failed digital audio control moduleCommon
Software fault or bus wiring issueLess often

How to diagnose & fix

Work through it in order

Confirm the code and check for related infotainment/audio U-codes.
Inspect the module's connector, wiring, power, and ground.
Try a system reset if the vehicle supports one.
Verify bus communication to the module.
Replace and program the audio module if it's confirmed faulty.

FAQ

Quick answers

Is it safe to drive with U0193?+

Yes. It's an audio-system fault only and doesn't affect how the vehicle drives, steers, or brakes.

Can I just clear U0193?+

You can try, and a one-off glitch may not return. If the module has a wiring or hardware fault, the code and the loss of audio will come back.

Read & clear U0193 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX