U0417

Invalid Data Received From Park Brake Control Module

Q: Is it safe to drive with U0417?

Driving is usually fine, but the electronic parking brake may not hold or release properly — when parking, especially on a hill, chock the wheels or leave it in gear/Park until it's fixed.

Q: Can I just clear U0417?

You can, but if the park brake module or its data link is still faulty the code returns and the parking-brake warning comes back on.

Communication network (electronic parking brake) Generic OBD-II Medium

What it means

U0417 sets when a control module reads data from the park brake control module — which runs the electronic parking brake — that is missing or implausible. The main effect is that the parking brake may not set or release reliably; the vehicle still drives normally, but don't depend on the EPB until it's fixed.

Medium

Can I keep driving? The vehicle drives normally, but the electronic parking brake may not set or release reliably — use caution when parking and don't depend on it until it's fixed.

Real-world scan data

Seen in

123

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

Parking-brake or EPB fault light on, usually with the check-engine light
Electronic parking brake won't apply or release
"Service park brake" or similar warning message
Auto-hold or hill-hold features may be unavailable
Related communication codes stored in other modules

Common causes

Most likely first

Faulty park brake control module or its power/ground supplyLikely
Corroded, loose, or damaged connectors and data-bus (CAN) wiringCommon
Low or unstable battery and charging-system voltageCommon
Software incompatibility after a module was replaced or updatedLess often
An underlying EPB actuator or switch fault reported by the moduleLess often

How to diagnose & fix

Work through it in order

Scan all modules and record stored codes and freeze-frame data before clearing.
Check battery and charging voltage — low or noisy voltage is a common cause of bus faults.
Inspect connectors and wiring to the park brake control module and along the data bus.
If a module was recently replaced or flashed, confirm the software is compatible.
Run the manufacturer's pinpoint tests on the park brake module and actuator; replace only if confirmed.

FAQ

Quick answers

Is it safe to drive with U0417?+

Driving is usually fine, but the electronic parking brake may not hold or release properly — when parking, especially on a hill, chock the wheels or leave it in gear/Park until it's fixed.

Can I just clear U0417?+

You can, but if the park brake module or its data link is still faulty the code returns and the parking-brake warning comes back on.

Read & clear U0417 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