OBD Guide
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B2A24

Turn Signal Input Circuit Failure

B2A24 is an OBD-II diagnostic trouble code meaning: Turn Signal Input Circuit Failure. Common causes: open or short circuit in wiring harness, faulty turn signal relay. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Turn signals don't work
  • Lamps flash quickly or unevenly
  • Dashboard warning

Causes

  • Open or short circuit in wiring harness
  • Faulty turn signal relay
  • Poor contact in connectors
  • Contact corrosion
  • Faulty turn switch

How to Fix

  1. Check the turn signal fuse
  2. Inspect the wiring harness for damage
  3. Check the relay and replace if necessary
  4. Clean contacts in connectors
  5. Check the operation of the turn switch

Related codes

B2A23B2A25

FAQ

What does the B2A24 code mean?

B2A24 is an OBD-II diagnostic trouble code that indicates: Turn Signal Input Circuit Failure

What causes a B2A24 error code?

The most common causes of B2A24 include: Open or short circuit in wiring harness; Faulty turn signal relay; Poor contact in connectors; Contact corrosion.

How do I fix a B2A24 diagnostic trouble code?

To fix B2A24: Check the turn signal fuse. Inspect the wiring harness for damage. Check the relay and replace if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2A24?

Limited driving only, diagnose soon

How much does it cost to fix B2A24?

The estimated repair cost for B2A24 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat