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OBDII/EOBD diagnostics trouble codes definition

If your car is equipped with OBD-II or EOBD, you can access over 5,000 generic OBD-II diagnostic trouble codes (DTCs). These codes cover various vehicle systems, including Powertrain (P0XXX, P2XXX, P34XX), Body (B0XXX), Chassis (C0XXX), and Network/Communication (U0XXX, U2XXX, U3XXX). Additionally, there are more than 13,500 manufacturer-specific OBD-II codes available for diagnosing issues unique to different car brands and models. Make sure you're equipped with the right tools to understand and resolve these trouble codes to keep your vehicle running smoothly.

By using these OBD-II codes, you can effectively diagnose issues related to engine performance, safety features, suspension, and more.

Supported manufacturers with specific OBD2 codes:

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Detailed Description of Error B0073

OBDII error B0073 refers to a problem with the Second Row Left Seatbelt Pretensioner Deployment Control. The seatbelt pretensioner is a critical safety device designed to tighten the seatbelt in the event of sudden braking or a crash. The deployment control system ensures that the pretensioner deploys correctly and safely.

The error code B0073 is a subfault code, indicating that the issue is related to a specific component or system within the seatbelt pretensioner deployment control. This code is usually accompanied by a primary fault code that provides more general information about the problem.

The error code B0073 may trigger the airbag warning light or the seatbelt warning light on the dashboard, and it may also prevent the seatbelt pretensioner from functioning properly. In some cases, the error code may not cause any noticeable symptoms, but it can still pose a safety risk if left unaddressed.

Possible Causes of Error B0073

  • Short circuit or open circuit in the seatbelt pretensioner wiring harness
  • Corrosion or damage to the seatbelt pretensioner connector
  • Seatbelt pretensioner deployment control module failure
  • Seatbelt pretensioner sensor or switch failure
  • Incorrect seatbelt pretensioner installation or calibration
  • Software issue with the airbag control module

Possible Fixes for Error B0073

  1. Inspect the seatbelt pretensioner wiring harness for any signs of damage or corrosion, and repair or replace as needed
  2. Check the seatbelt pretensioner connector for any signs of corrosion or damage, and clean or replace as needed
  3. Use a scan tool to monitor the seatbelt pretensioner deployment control module for any signs of failure, and replace if necessary
  4. Replace the seatbelt pretensioner sensor or switch if it is faulty
  5. Reinstall or recalibrate the seatbelt pretensioner according to the manufacturer''s instructions
  6. Update the airbag control module software to the latest version

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