OBD Guide
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B1A0F

Remote Keyless Entry Fob 8 Performance

B1A0F is an OBD-II diagnostic trouble code meaning: Remote Keyless Entry Fob 8 Performance. Common causes: low battery in the key fob, damage to the key fob (mechanical or moisture). Estimated repair cost: $6–56.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • The key fob does not respond to button presses
  • Reduced range of the key fob
  • Intermittent remote control operation
  • The malfunction indicator on the dashboard lights up

Causes

  • Low battery in the key fob
  • Damage to the key fob (mechanical or moisture)
  • Malfunction of the receiver antenna in the car
  • Problems with the remote control wiring harness
  • Failures in the control unit software

How to Fix

  1. Replace the battery in the key fob
  2. Check the key fob for damage
  3. Diagnose the signal receiver antenna
  4. Check the integrity of the system wiring harness
  5. Reprogram the key fob if necessary
  6. Update control unit software

Related codes

B1A00B1A01B1A02

FAQ

What does the B1A0F code mean?

B1A0F is an OBD-II diagnostic trouble code that indicates: Remote Keyless Entry Fob 8 Performance

What causes a B1A0F error code?

The most common causes of B1A0F include: Low battery in the key fob; Damage to the key fob (mechanical or moisture); Malfunction of the receiver antenna in the car; Problems with the remote control wiring harness.

How do I fix a B1A0F diagnostic trouble code?

To fix B1A0F: Replace the battery in the key fob. Check the key fob for damage. Diagnose the signal receiver antenna. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1A0F?

Yes, but get it checked soon

How much does it cost to fix B1A0F?

The estimated repair cost for B1A0F is $6–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat