U0463 code meaning
Invalid Data Received From Navigation Display Module
What U0463 means
The navigation display module is the screen part of a navigation head unit that shows maps and route guidance. U0463 marks invalid data from it, while U0162 means it is silent and U0464 concerns the navigation control unit. Subaru documents the partner: in bulletin 07-205-22 the rear vehicle detection module of the 2021 Crosstrek and 2020-22 Forester stores U0162 and lights its warning until reprogramming makes its CAN exchange with the head unit more robust, and TechTIPS 10/2015 calls the unit audio visual navigation display. No maker documents U0463 in this sense. FCA, now Stellantis, uses the number differently: in PCM bulletin 18-090-19 for the 2019 RAM ProMaster, U0463 is a fuel level plausibility code that new software switches off in favour of P0463. Usually only map and screen are affected; no MIL.
U0463 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0463
- Navigation map or screen blank or frozen
- Warnings of systems that share data with the head unit
Common causes of U0463
- Most likelySoftware fault or mismatch in the head unit or display
- PossibleFuse, relay or supply problem of the display unit
- Less likelyConnector or bus wiring fault at the display
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Navigation display module
What each part of U0463 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 63 | The exact fault in that area. |
What to do next
- Note U0463 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 U0463
What does U0463 mean?
U0463 means "Invalid Data Received From Navigation Display Module". The navigation display module is the screen part of a navigation head unit that shows maps and route guidance. It is a generic code, so it means the same on every make.
Is it safe to drive with U0463?
U0463 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0463 fail an emissions test?
U0463 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 U0463 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2 hours of work. This is a job for a workshop.
Will U0463 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.