OBD Guide
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B2281

P Signal Malfunction

B2281 is an OBD-II diagnostic trouble code meaning: P Signal Malfunction. Common causes: open or short circuit in wiring harness, poor contact in connectors. Estimated repair cost: $56–222.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–222 (est.)

Symptoms

  • Airbag light is on
  • Belt pretensioners do not work
  • The passive safety system does not activate

Causes

  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Squib malfunction
  • Problems with the SRS module
  • Contact corrosion

How to Fix

  1. Check the wiring harness for breaks or damage
  2. Inspect the contacts in the connectors for corrosion or oxidation.
  3. Diagnose the SRS module
  4. Replace faulty components (if necessary)
  5. Reset errors and check the system

Related codes

B2280B2282B0010B0011

FAQ

What does the B2281 code mean?

B2281 is an OBD-II diagnostic trouble code that indicates: P Signal Malfunction

What causes a B2281 error code?

The most common causes of B2281 include: Open or short circuit in wiring harness; Poor contact in connectors; Squib malfunction; Problems with the SRS module.

How do I fix a B2281 diagnostic trouble code?

To fix B2281: Check the wiring harness for breaks or damage. Inspect the contacts in the connectors for corrosion or oxidation.. Diagnose the SRS module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2281?

Do not drive — repair immediately

How much does it cost to fix B2281?

The estimated repair cost for B2281 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat