U0430
Invalid Data Received From Tire Pressure Monitor Module
Communication network
Generic OBD-II
Low
What it means
U0430 is a network communication code: a module is receiving data from the tire pressure monitor (TPMS) module that is corrupt, missing, or out of range. Communication is working, but the values are wrong. It affects tire-pressure monitoring only — nothing about the engine or braking — so the practical impact is losing your low-pressure warnings until it's repaired. Check pressures manually in the meantime.
Low
Can I keep driving? Safe to drive — this affects the tire-pressure monitoring system, not engine or safety controls; check tire pressures manually while it's faulty.
Common symptoms
What you'll notice
- TPMS warning light on or flashing
- Missing, frozen, or incorrect tire-pressure readings on the display
- TPMS message such as 'service tire monitor system'
- Other network warning lights at the same time
Common causes
Most likely first
- Internal fault in the tire pressure monitor module sending corrupt dataLikely
- Wiring or connector problems on the bus to the TPMS moduleCommon
- Low system voltage or a poor ground at the moduleCommon
- Failed or unregistered TPMS sensors after a tire or sensor changeLess often
How to diagnose & fix
Work through it in order
- Scan all modules and record freeze-frame data; clear any lost-communication codes first.
- Check battery voltage and the TPMS module's ground.
- Inspect the module connector and bus wiring for corrosion or loose pins.
- Relearn/register the TPMS sensors if tires or sensors were recently serviced.
- If wiring and power are good, suspect the TPMS module and confirm with manufacturer tests.
FAQ
Quick answers
Is it safe to drive with U0430?+
Yes. The car drives normally, but you lose reliable tire-pressure warnings. Check pressures with a gauge regularly until the system is fixed.
Can I just clear U0430?+
It returns while the module reports bad data. If tires or sensors were recently changed, a TPMS relearn is often needed rather than just clearing the code.
Related codes
Often seen with U0430
Read & clear U0430 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX