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Home / DTC / U0547 — Invalid Data Received From Seat Control Module E

U0547 — Invalid Data Received From Seat Control Module E

Detailed page for trouble code U0547.

34,405codes
59brands
11,914generic
22,491specific
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U0547

Generic U — Network/User

Invalid Data Received From Seat Control Module E

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

Causes

  • Faulty seat control module (internal software or hardware fault)
  • Intermittent or failed CAN/LIN bus communication
  • Damaged wiring harness or poor connector/terminal contact to the seat module
  • Incorrect module programming or outdated firmware
  • Low or lost module supply voltage or poor ground
  • Bus termination mismatch or excessive bus noise

Symptoms

  • Seat functions intermittent or inoperative (adjust, memory, heating)
  • One or more seat-related warning messages or lamp illumination
  • Other modules show related communication faults or degraded operation
  • Intermittent appearance of the U0547 fault, often after vibration or connector movement

What to check

  • Read freeze frame and full network DTCs with a capable scan tool
  • Check for other U0xxx or communication codes that could indicate bus-wide issues
  • Visually inspect connectors and wiring at the seat control module for damage, corrosion, bent pins, or moisture
  • Verify battery voltage and engine running voltage at the seat module (12–14.5 V expected)
  • Check module grounds for tightness and corrosion
  • Use a scope or meter to check CANH/CANL or LIN signals while exercising seat functions

Signal parameters

  • Battery supply to module: ~12–14.5 V (vehicle dependent)
  • Ground: near 0 V with low resistance to chassis
  • CAN bus idle (recessive) voltage: ~2.5 V on CANH and CANL (each ~2.5 V relative to chassis)
  • CAN dominant state: differential voltage typically >1 V (CANH rises, CANL falls); verify expected differential pulses when operating seat
  • CAN bus termination: ~60 ohms measured across CANH–CANL with ignition on (two 120 Ω terminators in parallel)
  • LIN bus (if used): idle ~battery or Pull-up voltage, active low pulses; check for expected message timing and framing

Diagnostic algorithm

  1. Connect a manufacturer-capable scan tool and read all modules. Record U0547 occurrence, freeze frame and any other U0 or body-module codes.
  2. Clear the code and perform an operation that should trigger seat messages (adjust seat, memory recall) while monitoring live data and CAN/LIN message traffic to see if code reappears.
  3. Visually inspect the seat control module connector, harness routing, and pins for damage, corrosion, bent pins or moisture. Repair as needed and re-check.
  4. Verify power and ground at the seat control module connector with ignition on. Repair poor power/ground before proceeding.
  5. Backprobe CANH and CANL (and LIN if present) at the module and observe with an oscilloscope or dual-channel diagnostic tool while exercising seat functions. Look for noise, missing messages, stuck dominant states, or incorrect voltages.
  6. Measure termination resistance across CANH–CANL; confirm ~60 ohms. If open or wrong value, locate missing/shorted terminator or wiring faults.
  7. If wiring and bus health are good, check for nearby modules reporting related errors—an upstream module may be transmitting bad data. Swap or test suspect modules per manufacturer procedure.
  8. Verify the seat module software/calibration level and reflash/update if manufacturer bulletins or updates exist. After update, clear codes and retest.
  9. If the module still transmits invalid data and wiring, power, ground, and bus are confirmed good, consider replacing the seat control module per OE procedures. Program/configure the replacement module as required.
  10. After repairs, erase DTCs and perform a full bus/system check; confirm U0547 does not return and seat functions operate normally.

Likely causes

  • Loose or corroded connector at the seat control module
  • Faulty CAN high/low or LIN wiring to the seat module
  • Seat control module internal fault or corrupted software
  • Short or open in power/ground to the seat module

Fault status

⚠️ Status
Invalid data received from Seat Control Module E — module messages failed plausibility/checksum/timing on vehicle network.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1-3 hours
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Code

U0547

HYUNDAI U — Network/User

Invalid Data Received From “Seat Control Module E”

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

Causes

  • Faulty seat control module (internal software or hardware fault)
  • Intermittent or failed CAN/LIN bus communication
  • Damaged wiring harness or poor connector/terminal contact to the seat module
  • Incorrect module programming or outdated firmware
  • Low or lost module supply voltage or poor ground
  • Bus termination mismatch or excessive bus noise

Symptoms

  • Seat functions intermittent or inoperative (adjust, memory, heating)
  • One or more seat-related warning messages or lamp illumination
  • Other modules show related communication faults or degraded operation
  • Intermittent appearance of the U0547 fault, often after vibration or connector movement

What to check

  • Read freeze frame and full network DTCs with a capable scan tool
  • Check for other U0xxx or communication codes that could indicate bus-wide issues
  • Visually inspect connectors and wiring at the seat control module for damage, corrosion, bent pins, or moisture
  • Verify battery voltage and engine running voltage at the seat module (12–14.5 V expected)
  • Check module grounds for tightness and corrosion
  • Use a scope or meter to check CANH/CANL or LIN signals while exercising seat functions

Signal parameters

  • Battery supply to module: ~12–14.5 V (vehicle dependent)
  • Ground: near 0 V with low resistance to chassis
  • CAN bus idle (recessive) voltage: ~2.5 V on CANH and CANL (each ~2.5 V relative to chassis)
  • CAN dominant state: differential voltage typically >1 V (CANH rises, CANL falls); verify expected differential pulses when operating seat
  • CAN bus termination: ~60 ohms measured across CANH–CANL with ignition on (two 120 Ω terminators in parallel)
  • LIN bus (if used): idle ~battery or Pull-up voltage, active low pulses; check for expected message timing and framing

Diagnostic algorithm

  1. Connect a manufacturer-capable scan tool and read all modules. Record U0547 occurrence, freeze frame and any other U0 or body-module codes.
  2. Clear the code and perform an operation that should trigger seat messages (adjust seat, memory recall) while monitoring live data and CAN/LIN message traffic to see if code reappears.
  3. Visually inspect the seat control module connector, harness routing, and pins for damage, corrosion, bent pins or moisture. Repair as needed and re-check.
  4. Verify power and ground at the seat control module connector with ignition on. Repair poor power/ground before proceeding.
  5. Backprobe CANH and CANL (and LIN if present) at the module and observe with an oscilloscope or dual-channel diagnostic tool while exercising seat functions. Look for noise, missing messages, stuck dominant states, or incorrect voltages.
  6. Measure termination resistance across CANH–CANL; confirm ~60 ohms. If open or wrong value, locate missing/shorted terminator or wiring faults.
  7. If wiring and bus health are good, check for nearby modules reporting related errors—an upstream module may be transmitting bad data. Swap or test suspect modules per manufacturer procedure.
  8. Verify the seat module software/calibration level and reflash/update if manufacturer bulletins or updates exist. After update, clear codes and retest.
  9. If the module still transmits invalid data and wiring, power, ground, and bus are confirmed good, consider replacing the seat control module per OE procedures. Program/configure the replacement module as required.
  10. After repairs, erase DTCs and perform a full bus/system check; confirm U0547 does not return and seat functions operate normally.

Likely causes

  • Loose or corroded connector at the seat control module
  • Faulty CAN high/low or LIN wiring to the seat module
  • Seat control module internal fault or corrupted software
  • Short or open in power/ground to the seat module

Fault status

⚠️ Status
Invalid data received from Seat Control Module E — module messages failed plausibility/checksum/timing on vehicle network.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1-3 hours
371

Browse 371 HYUNDAI manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

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