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Home / DTC / U0430 — Invalid Data Received From Tire Pressure Monitor Module

U0430 — Invalid Data Received From Tire Pressure Monitor Module

Detailed page for trouble code U0430.

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U0430

HYUNDAI U — Network/User

Invalid Data Received From Tire Pressure Monitor Module

Brand: HYUNDAI
Type: U — Network/User
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Faulty TPMS control module
  • Corrupt or malformed CAN bus messages from TPMS module
  • Broken/poor CAN bus wiring or connector corrosion
  • Low vehicle battery or poor TPMS module power/ground
  • Incompatible or incorrectly programmed/replaced TPMS module or ECU software mismatch
  • Failed individual tire pressure sensors (low sensor battery, damaged sensor)

Symptoms

  • TPMS warning lamp illuminated or flashing
  • TPMS pressure values missing, inconsistent, or showing implausible values
  • Intermittent TPMS readings or inability to learn/relearn sensors
  • Related modules show communication or data errors
  • Possible drivability concerns if other network messages are affected

What to check

  • Connect a manufacturer-capable scan tool and read U0430 and any related codes and freeze frame data
  • Check TPMS status pages: available sensor IDs and reported pressures
  • Scan other modules for network communication errors (U-codes)
  • Visually inspect TPMS module connectors, wiring, grounds, and antenna/receiver connections for corrosion or damage
  • Verify vehicle battery voltage and TPMS module power supply/ground with multimeter
  • Attempt to read TPMS sensor IDs with a TPMS tool and confirm RF responses

Signal parameters

  • Vehicle battery nominal ~12 V (check at TPMS module power pin)
  • CAN bus idle state voltages: CAN_H ≈ 2.5 V, CAN_L ≈ 2.5 V (differential when dominant ~2 V) — verify with scope
  • TPMS RF sensor frequencies: typically 315 MHz (North America) or 433 MHz (other regions) — verify regional frequency
  • TPMS sensor battery typically ~3.0 V (coin cell) — low voltage may affect transmissions
  • TPMS module messages normally transmit at periodic intervals (sensors periodically transmit when vehicle is stationary and more frequently while driving)

Diagnostic algorithm

  1. Record all active and stored DTCs and freeze frame data using a manufacturer scan tool
  2. Verify there are no outstanding vehicle-wide bus-off or communication codes (e.g., U0073, U0100) that would affect TPMS messages
  3. Confirm battery state-of-charge and measure TPMS module supply voltage and ground continuity
  4. Visually inspect TPMS module connectors, harness and antenna wiring for damage or corrosion; repair as required
  5. Use an oscilloscope or lab scope to check CAN_H and CAN_L at the TPMS module connector for proper idle and message activity while attempting to read TPMS data
  6. Use a TPMS sensor tool to wake each wheel sensor and confirm valid ID and pressure/temperature data; replace any sensor that does not respond or gives implausible values
  7. If CAN bus and sensors check good, attempt a software/firmware reflash or module reprogram per manufacturer procedures (ensure correct part number and calibration for vehicle)
  8. After repairs or reprogramming, clear codes and perform TPMS sensor learn/relearn procedure (follow manufacturer-specific sequence) and road test to confirm proper operation
  9. If invalid data persists and wiring/communication verified, consider replacing the TPMS control module and program it to vehicle; retest and verify

Likely causes

  • CAN bus wiring fault between TPMS module and other modules (open, short, high resistance)
  • TPMS module firmware/software version mismatch after replacement or update
  • Failed TPMS module (internal electronics)
  • Dead/weak sensor batteries causing invalid or partial data frames
  • Connector corrosion or poor ground at TPMS module

Fault status

⚠️ Status
Invalid data received from Tire Pressure Monitor Module (TPMS). Communication or data integrity problem between TPMS module and vehicle control network; verify wiring, module power/ground, sensor responses and module programming.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-2.5 hours

Similar codes

U0100 U0140 U0073 U0415 U0401
371

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