U0159
Lost Communication With Parking Assist Control Module A
Network / communication
Generic OBD-II
Low
What it means
U0159 sets when the network loses contact with parking assist control module A, which runs the parking sensors and related alerts. The parking-assist feature is normally disabled and a warning light comes on; the vehicle drives fine, but rely on your own checks when parking until it's fixed.
Low
Can I keep driving? Yes — the car drives normally; you just lose parking sensors/assist and get a warning light, so park using mirrors and visual checks until repaired.
Common symptoms
What you'll notice
- Parking assist / park-sensor warning light on
- Parking sensors and alerts not working
- Parking assist module missing from a scan
- Sometimes companion communication codes
Common causes
Most likely first
- Blown fuse or lost power/ground to the parking assist moduleLikely
- Damaged or corroded wiring/connector (rear of vehicle, exposed)Common
- CAN bus fault to the moduleCommon
- Failed parking assist control moduleLess often
- Low battery or charging voltageLess often
How to diagnose & fix
Work through it in order
- Scan for other communication codes to gauge whether the bus or just this module is affected.
- Check the module's fuse, power, and ground.
- Inspect the connector and harness, especially in the rear where moisture collects.
- Test the CAN bus wiring to the module for continuity and resistance.
- If supply and bus are good, suspect the module.
FAQ
Quick answers
Is it safe to drive with U0159?+
Yes. Only parking assist is lost; the car drives normally. Just rely on mirrors and your own checks when parking until it's fixed.
Can I just clear U0159?+
It returns if the module still can't communicate. Repair the cause first, then clear and retest.
Related codes
Often seen with U0159
Read & clear U0159 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