U0189
Lost Communication With Digital Disc Player/Changer Module C
Network / communication
Generic OBD-II
Low
What it means
U0189 sets when the network loses contact with digital disc player/changer module C, a CD/DVD unit in the audio system. This is an infotainment-only fault: the disc player may stop responding, but the vehicle drives normally and no safety or drivetrain systems are affected.
Low
Can I keep driving? Yes — nothing about driving is affected; only the disc player/changer stops working until it's fixed.
Common symptoms
What you'll notice
- CD/DVD player or changer unresponsive
- Disc module missing from a scan
- Audio-system error or warning message
- Sometimes a companion communication code
Common causes
Most likely first
- Blown fuse or lost power/ground to the disc moduleLikely
- Damaged or corroded wiring/connectorCommon
- Infotainment/CAN bus fault to the moduleCommon
- Failed disc player/changer moduleLess often
- Loose harness connectorLess often
How to diagnose & fix
Work through it in order
- Scan for other communication codes to check whether only this module is affected.
- Check the module's fuse, power, and ground.
- Inspect and reseat the connector; look for corrosion.
- Verify bus wiring continuity to the module.
- If supply and bus are good, the module is the likely fault.
FAQ
Quick answers
Is it safe to drive with U0189?+
Yes. This is an infotainment-only fault; the car drives normally. Fix it whenever convenient.
Can I just clear U0189?+
It returns if the module still can't communicate. Repair the wiring, supply, or module first.
Related codes
Often seen with U0189
Read & clear U0189 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX