U0159

Lost Communication With Parking Assist Control Module A

Q: 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.

Q: Can I just clear U0159?

It returns if the module still can't communicate. Repair the cause first, then clear and retest.

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.

Real-world scan data

Seen in

223

scans in the past year

Found in

<0.1%

of scans

0.1%

of scans that found faults

Appears alongside · share of U0159 scans

U0121in 25.6% of scans

U0401in 24.2% of scans

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

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.

Read & clear U0159 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