OBD Guide
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U184E

Lost Communication With Inflatable Restraint Sensing And Diagnostic Module On Low Speed CAN Bus

U184E is an OBD-II diagnostic trouble code meaning: Lost Communication With Inflatable Restraint Sensing And Diagnostic Module On Low Speed CAN Bus. Common causes: open or short circuit in wiring, airbag module malfunction. Estimated repair cost: $56–167.

Severity
🚨 Critical
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag light is on
  • Disabling the airbag system
  • No communication with diagnostic module
  • Possible problems with other systems connected to the CAN bus

Causes

  • Open or short circuit in wiring
  • Airbag module malfunction
  • Module power problems
  • Low speed CAN bus fault
  • Corrosion or oxidation of contacts

How to Fix

  1. Check the integrity of wiring and contacts
  2. Check power supply to airbag module
  3. Diagnose low speed CAN bus
  4. Replace the airbag module if necessary
  5. Repair only from an authorized dealer

Related codes

U184FU1850B184E

FAQ

What does the U184E code mean?

U184E is an OBD-II diagnostic trouble code that indicates: Lost Communication With Inflatable Restraint Sensing And Diagnostic Module On Low Speed CAN Bus

What causes a U184E error code?

The most common causes of U184E include: Open or short circuit in wiring; Airbag module malfunction; Module power problems; Low speed CAN bus fault.

How do I fix a U184E diagnostic trouble code?

To fix U184E: Check the integrity of wiring and contacts. Check power supply to airbag module. Diagnose low speed CAN bus. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U184E?

Do not drive — repair immediately

How much does it cost to fix U184E?

The estimated repair cost for U184E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat