OBD Guide
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B1A0E

Remote Keyless Entry Fob 7 Performance

B1A0E is an OBD-II diagnostic trouble code meaning: Remote Keyless Entry Fob 7 Performance. Common causes: low battery in key fob, damaged keychain. Estimated repair cost: $6–111.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–111 (est.)

Symptoms

  • Problems with remote opening/closing of doors
  • Reducing the range of the key fob
  • Unstable operation of keyless entry (if any)

Causes

  • Low battery in key fob
  • Damaged keychain
  • Malfunction of the RKE module in the car
  • Problems with wiring harness or antenna
  • Electromagnetic interference
  • Software problems

How to Fix

  1. Replace the battery in the key fob
  2. Check the key fob for physical damage
  3. Check the operation of the spare key fob (if any)
  4. Diagnose RKE module and antenna
  5. Check wiring harness for damage
  6. Update RKE module software (if required)

Related codes

B1A0DB1A0F

FAQ

What does the B1A0E code mean?

B1A0E is an OBD-II diagnostic trouble code that indicates: Remote Keyless Entry Fob 7 Performance

What causes a B1A0E error code?

The most common causes of B1A0E include: Low battery in key fob; Damaged keychain; Malfunction of the RKE module in the car; Problems with wiring harness or antenna.

How do I fix a B1A0E diagnostic trouble code?

To fix B1A0E: Replace the battery in the key fob. Check the key fob for physical damage. Check the operation of the spare key fob (if any). For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1A0E?

Yes, but get it checked soon

How much does it cost to fix B1A0E?

The estimated repair cost for B1A0E is $6–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat