OBD Guide
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B1A0A

Remote Keyless Entry Fob 3 Performance

B1A0A is an OBD-II diagnostic trouble code meaning: Remote Keyless Entry Fob 3 Performance. Common causes: low key fob battery, wiring harness damage. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • Does not respond to key fob button presses
  • Reduced range of the key fob
  • Error indication on the dashboard

Causes

  • Low key fob battery
  • Wiring harness damage
  • Control module malfunction
  • Software system failure

How to Fix

  1. Check and replace the key fob battery
  2. Inspect the wiring harness for damage
  3. Scan the system for other errors
  4. Reprogram the key fob if necessary

Related codes

B1A09B1A0B

FAQ

What does the B1A0A code mean?

B1A0A is an OBD-II diagnostic trouble code that indicates: Remote Keyless Entry Fob 3 Performance

What causes a B1A0A error code?

The most common causes of B1A0A include: Low key fob battery; Wiring harness damage; Control module malfunction; Software system failure.

How do I fix a B1A0A diagnostic trouble code?

To fix B1A0A: Check and replace the key fob battery. Inspect the wiring harness for damage. Scan the system for other errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1A0A?

Limited driving only, diagnose soon

How much does it cost to fix B1A0A?

The estimated repair cost for B1A0A is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat