U0430 code meaning
Invalid Data Received From Tire Pressure Monitor Module
What U0430 means
U0430 means that a receiver gets frames from the tire pressure monitor module but rejects what they contain, such as wheel pressures, sensor identifiers or a system status outside the permitted range, or a broken message counter. A stand-alone evaluation unit exists for example in the 2020 Jeep Gladiator Rubicon, whose TPM module FCA reflashed to add the selectable tire fill alert (bulletin 08-023-20). No manufacturer documents U0430 publicly with thresholds or a named receiver. FMVSS 138 obliges the TPMS malfunction telltale to light within 20 minutes of a fault that disturbs how the system creates or transmits its signals, so a lit warning lamp and missing pressure readings are the usual result. U0127 is lost contact, U0330 a software mismatch.
U0430 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0430
- TPMS malfunction lamp on or flashing
- Tire pressures missing or shown as dashes in the cluster
Common causes of U0430
- PossibleOutdated or unsuitable software in the tire pressure module
- PossibleWheel sensors not learned after tire or wheel change, module sends default values
- Less likelyPoor supply, ground or connector at the tire pressure module
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Tpms module
What each part of U0430 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 30 | The exact fault in that area. |
What to do next
- Note U0430 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 U0430
What does U0430 mean?
U0430 means "Invalid Data Received From Tire Pressure Monitor Module". U0430 means that a receiver gets frames from the tire pressure monitor module but rejects what they contain, such as wheel pressures, sensor identifiers or a system status outside the permitted range, or a broken message counter. It is a generic code, so it means the same on every make.
Is it safe to drive with U0430?
U0430 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0430 fail an emissions test?
U0430 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 U0430 to fix?
Difficulty: medium. A typical repair takes 0.3 to 1.5 hours of work. This is a job for a workshop.
Will U0430 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.