U0417 code meaning
Invalid Data Received From Park Brake Control Module
What U0417 means
U0417 covers implausible data from the park brake control module, the controller of an electric parking brake that clamps the rear calipers by motor and reports apply state and faults on the bus. A receiver stores it when these frames arrive with a bad counter, checksum or an invalid value. No manufacturer explains U0417 in public documents. GM lists it only among history codes of the 2014 Cadillac ELR (PIC5988) that should not lead to replaced or reprogrammed parts unless they can be reproduced. GM's 2025 tables also show that the park brake apply status may be judged under U0418 instead: the front camera module counts it among brake signals whose protection may fail in 3 of 4 messages. U0128 is lost contact, U0317 software. Expect a park brake warning, disabled auto-apply or hill-hold functions and no MIL.
U0417 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0417
- Park brake warning lamp or message
- Auto hold or hill start assist unavailable
- Code only stored in history without current fault
Common causes of U0417
- PossibleLow battery voltage or a voltage dip corrupting park brake messages
- PossiblePark brake control module or its actuator feedback faulty
- Less likelyConnector or wiring fault in the park brake bus branch
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Park brake moduleCAN bus wiring
What each part of U0417 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 17 | The exact fault in that area. |
What to do next
- Note U0417 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0417
What does U0417 mean?
U0417 means "Invalid Data Received From Park Brake Control Module". U0417 covers implausible data from the park brake control module, the controller of an electric parking brake that clamps the rear calipers by motor and reports apply state and faults on the bus. It is a generic code, so it means the same on every make.
Is it safe to drive with U0417?
U0417 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0417 fail an emissions test?
U0417 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0417 to fix?
Difficulty: medium. A typical repair takes 0.3 to 3 hours of work. This is a job for a workshop.
Will U0417 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.