U0464 code meaning
Invalid Data Received From Navigation Control Module
What U0464 means
U0464 is stored when a module still hears the navigation control module but rejects its content: a frame whose checksum fails, a message counter that no longer advances, or position, heading and route values outside their defined range. Typical listeners are the instrument cluster or head-up display, which repeat turn arrows, and on some cars predictive cruise or shift logic that reads the map ahead. No manufacturer documents U0464 in an openly accessible source. The protection behind such checks, a CRC and a sequence counter per message, is laid down in the AUTOSAR end-to-end protocol. U0163 means the unit has gone silent, U0463 concerns the separate navigation display and U046B the GPS receiver. The consequences stay in guidance and comfort: missing arrows or a wrong map position, no MIL.
U0464 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0464
- Turn arrows missing in the cluster or head-up display
- Vehicle position on the map jumps or is wrong
- Route guidance stops or restarts unexpectedly
Common causes of U0464
- Most likelyNavigation unit software or map update fault sending implausible values
- PossibleLoose connector or damaged bus wiring at the navigation unit or head unit
- PossibleWeak 12 V battery or voltage dips during start-up corrupting frames
- Less likelyInternal fault in the navigation control module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Navigation module
What each part of U0464 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 64 | The exact fault in that area. |
What to do next
- Note U0464 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 U0464
What does U0464 mean?
U0464 means "Invalid Data Received From Navigation Control Module". U0464 is stored when a module still hears the navigation control module but rejects its content: a frame whose checksum fails, a message counter that no longer advances, or position, heading and route values outside their defined range. It is a generic code, so it means the same on every make.
Is it safe to drive with U0464?
U0464 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0464 fail an emissions test?
U0464 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 U0464 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. This is a job for a workshop.
Will U0464 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.