OBD-II trouble code
U0430: Invalid Data Received From Tire Pressure Monitor Module
A module is receiving messages from the tire pressure monitor (TPMS) module, but the data inside them is implausible or out of range. The link is alive — the content is wrong. A monitoring-only fault that does not affect driveability.
Quick facts
- System
- Network
- Category
- Network Communication
- Severity
- Low severity
- Drivable
- Usually safe to drive short-term
- Repair cost range
- $75 – $500
- DIY difficulty
- Intermediate DIY
What does U0430 mean?
The tire pressure monitor (TPMS) module collects pressure and, on many systems, temperature readings from the sensors inside each wheel, then reports tire status to the instrument cluster and other modules over the network so the low-pressure warning can be displayed. U0430 sets when a receiving module is still hearing from the TPMS module, but the data in its messages is invalid: a value is out of range, implausible, or contradicts what other modules see. The connection is alive; the content can't be trusted. That is the key difference from a lost-communication code, which means the module has gone completely silent.
Because the fault is bad data rather than a dead bus, the causes cluster around whatever makes the module broadcast wrong information. A very common source is the wheel sensors themselves — a TPMS sensor with a dead battery (they typically last 5-10 years and then fail), a damaged sensor, or a sensor that was never relearned to the module after a tire rotation or replacement can feed implausible or missing data. A weak vehicle battery or low system voltage can make module logic unreliable. The module's own software can be at fault if it is outdated, corrupted, or was never properly programmed after a replacement, and corroded connectors or chafed wiring, or radio-frequency interference near the receiver, can corrupt otherwise-good messages in transit. On systems with a dedicated antenna or initiator, a fault there can also produce bad data.
Symptoms are limited to the tire-monitoring system. You will typically see a check engine light and a TPMS warning light — often lit steadily or flashing — and the tire-pressure display may show dashes, incorrect values, or a 'service TPMS' message. Everything else about the car works normally: engine, brakes, and steering are unaffected, which is why U0430 is authored as low severity. The one caution is that while this fault is active you can't rely on the low-pressure warning, so check your tire pressures manually with a gauge until it is fixed. Because U0430 can be secondary to a specific TPMS sensor fault, read the full list — a companion sensor or 'sensor not learned' code often names the exact wheel.
Common causes
- TPMS wheel sensor with a dead internal battery (typical after 5-10 years)
- Damaged, missing, or unlearned TPMS sensor after tire rotation or replacement
- Weak vehicle battery or low system voltage
- Faulty TPMS receiver, antenna, or initiator on systems that use one
- Radio-frequency interference disrupting sensor reception
- Outdated, corrupted, or mismatched TPMS module software
- TPMS module replaced without proper programming
- Corroded connectors or chafed wiring corrupting messages in transit
Symptoms
- Check engine light with a TPMS warning light, steady or flashing
- Tire-pressure display showing dashes, blanks, or incorrect values
- 'Service TPMS' or 'Service Tire Monitor System' message
- One or more wheels not reporting pressure
- Companion TPMS sensor or 'sensor not learned' codes stored alongside U0430
- Vehicle otherwise driving normally — power, braking, and steering unaffected
Diagnostic steps
- 1.Read ALL stored codes first — U0430 is often secondary to a specific TPMS sensor code that names the affected wheel.
- 2.Use a TPMS tool to scan each wheel sensor for response, battery status, and correct ID registration.
- 3.Confirm all sensors were relearned to the module after any recent tire rotation or replacement.
- 4.Check vehicle battery and system voltage; low voltage can cause implausible module data.
- 5.Inspect the TPMS receiver/antenna and its wiring where fitted.
- 6.Verify the module has the correct, current calibration and correct vehicle/sensor configuration.
- 7.Manually verify actual tire pressures with a gauge to separate a real low tire from a data fault.
Repair cost
$75 – $500
Cost is usually modest. A single TPMS sensor is commonly $50-$120 plus $20-$60 to install and relearn (often bundled with tire service). Replacing a full set is more. A TPMS relearn alone is $20-$60. Correcting low vehicle voltage varies. A module reflash is $100-$300, and TPMS module replacement with programming is the top end at $250-$500 — but that should only follow diagnosis, since a failed wheel sensor is by far the more common cause.
Estimate your repair
Run the numbers for your vehicle
Open the Repair Cost Estimator with module communication / can bus diagnosis preselected. Adjust labor rate and vehicle category to fit your situation.
DIY vs shop
This is an intermediate DIY job. It usually involves diagnostic steps, specialty parts, and some careful work in tight spaces. If you have the tools and a service manual or trustworthy video for your specific vehicle, it is achievable in a weekend. Otherwise, a competent independent shop will be faster.