U0474 — Invalid Data Received From "Restraints System Sensor D"

vehicle network

Is it safe to drive?

Drive with caution The car drives normally, but with the SRS light on the airbags may not deploy in a crash. Treat it as a safety-critical repair: fine to drive to the shop, not fine to ignore for months.

How to diagnose with an OBD scanner

  1. Read the code and freeze frame Connect an OBD2 scanner, confirm U0474 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Check for companion codes and TSBs Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many U0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Inspect wiring and connectors Visually inspect the wiring harness and connectors related to the airbag / restraint system (SRS) for damage, corrosion, chafing or poor contact.
  4. Subsystem check Read the SRS module with a scanner that supports airbag systems — generic OBD2 readers cannot see these codes.
  5. Subsystem check Inspect under-seat connectors — they are often disturbed by seat movement or cleaning.
  6. Verify the repair Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm U0474 does not return.

Approximate repair cost

Repair cost depends on which component actually failed. Typical scenarios for U0474 (parts and labor, USD, independent shop rates): Reconnect or repair SRS wiring/connectors: $80–$250; Replace a sensor or clockspring: $150–$500; SRS module reset or replacement: $300–$1,000. Overall, fixing U0474 usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Common questions

What is the most common cause of U0474?

The most common causes are: failed clockspring (driver airbag circuit), depleted backup battery or low system voltage, faulty impact or occupancy sensor.

What does OBD2 code U0474 mean?

Invalid Data Received From "Restraints System Sensor D" (U0474): a vehicle network fault affecting the airbag / restraint system (SRS). Short, gentle driving to a shop is usually possible. Most often caused by failed clockspring (driver airbag circuit), depleted backup battery or low system voltage, faulty impact or occupancy sensor.

How much does it cost to fix U0474?

Reconnect or repair SRS wiring/connectors — $80–$250; Replace a sensor or clockspring — $150–$500; SRS module reset or replacement — $300–$1,000. Exact cost depends on the root cause, your vehicle and local labor rates — a proper diagnosis is the cheapest first step.

What are the symptoms of U0474?

Drivers most often notice: airbag system disabled message, airbag (SRS) warning light on, no other driving symptoms.

Will U0474 clear itself?

Sometimes U0474 clears after a few drive cycles if the fault was intermittent — for example a loose connector or a tank of bad fuel. The underlying cause usually remains, so the code tends to return. Clear it once; if it comes back, diagnose rather than erase it repeatedly.

What does U0474 mean?

U0474 (Invalid Data Received From "Restraints System Sensor D") is stored when self-diagnostics detect abnormal readings or behaviour of the airbag / restraint system (SRS). It belongs to the vehicle network category.

To set U0474, the control module compares live readings of the airbag / restraint system (SRS) against calibrated limits, usually over several drive cycles. Alongside the code it stores a freeze frame — a snapshot of rpm, load, coolant temperature and vehicle speed at the moment of failure. Reading that snapshot first saves diagnostic time.

Common symptoms of U0474

  • airbag system disabled message
  • airbag (SRS) warning light on
  • no other driving symptoms

What causes U0474?

  • faulty impact or occupancy sensor
  • depleted backup battery or low system voltage
  • damaged wiring under seats or in the steering column
  • failed clockspring (driver airbag circuit)
  • SRS control module fault or stored crash data

How to diagnose U0474

  1. Connect an OBD2 scanner, confirm U0474 is stored, and save the freeze frame data — it shows engine conditions when the fault was detected.
  2. Related codes often reveal the real root cause. Also check manufacturer technical service bulletins (TSB) for your make and model — many U0xxx issues have factory fixes or software updates. Search by VIN on the manufacturer site or nhtsa.gov.
  3. Visually inspect the wiring harness and connectors related to the airbag / restraint system (SRS) for damage, corrosion, chafing or poor contact.
  4. Read the SRS module with a scanner that supports airbag systems — generic OBD2 readers cannot see these codes.
  5. Inspect under-seat connectors — they are often disturbed by seat movement or cleaning.
  6. Clear the code, complete a full drive cycle including the conditions from the freeze frame, and confirm U0474 does not return.

How to fix U0474

Start with the cheapest and most common causes before replacing expensive parts:

  • Reconnect or repair SRS wiring/connectors — $80–$250
  • Replace a sensor or clockspring — $150–$500
  • SRS module reset or replacement — $300–$1,000

How much does it cost to fix U0474?

Repair cost depends on which component actually failed. Typical scenarios for U0474 (parts and labor, USD, independent shop rates):

  • Reconnect or repair SRS wiring/connectors: $80–$250
  • Replace a sensor or clockspring: $150–$500
  • SRS module reset or replacement: $300–$1,000

Overall, fixing U0474 usually costs between $80 and $1,000. An accurate diagnosis before buying parts saves money — the most expensive scenario is rarely the first one to check.

Can you drive with U0474?

The car drives normally, but with the SRS light on the airbags may not deploy in a crash. Treat it as a safety-critical repair: fine to drive to the shop, not fine to ignore for months.

Related OBD2 codes