U0347 code meaning
Software Incompatibility With Hybrid/EV Battery Interface Control Module N
What U0347 means
N, the fourteenth slot, is not tied to any vehicle in public sources. What can be shown is how false mismatch codes arise in the workshop. Volvo notes for its electric VNR that many apparent data mismatches come from TEA2+ control units not reporting to the tester; switching the truck on and letting it power up, then starting and logging into the tool, and only then plugging in the interface avoids them. Ford reports for 2012–2018 Focus Electric that U0130 can follow a battery pack replacement unless the programmable module installation is run, which flashes PCM and TCM for battery compatibility, and that reusing an old tester session can add U1030. A code for N is best judged after a clean session. U01AD and U04AE are its neighbours.
U0347 at a glance
- Check engine lightUsually not
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor0.3 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0347
- Code appears during or right after a tester session
- Further network codes in the battery controller
- Often no change in driving once programming is completed
Common causes of U0347
- Most likelyStale or incorrectly started tester session reports a false mismatch
- PossibleProgrammable module installation skipped after a battery replacement
- Less likelyBoard N really carries incompatible software
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Hv battery interface module n
What each part of U0347 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 47 | The exact fault in that area. |
What to do next
- Note U0347 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 U0347
What does U0347 mean?
U0347 means "Software Incompatibility With Hybrid/EV Battery Interface Control Module N". N, the fourteenth slot, is not tied to any vehicle in public sources. It is a generic code, so it means the same on every make.
Is it safe to drive with U0347?
Drive gently and only to a workshop. With U0347 the car can go into limp mode (reduced power) to protect itself.
Will U0347 fail an emissions test?
Yes, it can. U0347 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is U0347 to fix?
Difficulty: workshop only. A typical repair takes 0.3 to 1.5 hours of work. This is a job for a workshop.
Will U0347 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.