OBD Guide
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B272F

Passenger Ignition Run/Blower Circuit Short To Ground

B272F is an OBD-II diagnostic trouble code meaning: Passenger Ignition Run/Blower Circuit Short To Ground. Common causes: wiring harness damage, contact corrosion. Estimated repair cost: $56–167.

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

Symptoms

  • Airbag light is on
  • Incorrect fan operation
  • Lack of response from the passive safety system during diagnostics

Causes

  • Wiring harness damage
  • Contact corrosion
  • Airbag module malfunction
  • Fan circuit problems

How to Fix

  1. Conduct a visual inspection of the wiring harness for damage.
  2. Check contacts for corrosion
  3. Test the airbag module
  4. Check fan circuit for short circuit
  5. Replace damaged components

Related codes

B2720B2721B2725

FAQ

What does the B272F code mean?

B272F is an OBD-II diagnostic trouble code that indicates: Passenger Ignition Run/Blower Circuit Short To Ground

What causes a B272F error code?

The most common causes of B272F include: Wiring harness damage; Contact corrosion; Airbag module malfunction; Fan circuit problems.

How do I fix a B272F diagnostic trouble code?

To fix B272F: Conduct a visual inspection of the wiring harness for damage.. Check contacts for corrosion. Test the airbag module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B272F?

Do not drive — repair immediately

How much does it cost to fix B272F?

The estimated repair cost for B272F is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat