OBD Guide
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B1486

Brake Pedal Input Circuit Ground Short

B1486 is an OBD-II diagnostic trouble code meaning: Brake Pedal Input Circuit Ground Short. Common causes: wiring harness damage, brake pedal sensor malfunction. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Unstable operation of the braking system
  • Activating emergency ABS/ESP mode

Causes

  • Wiring harness damage
  • Brake pedal sensor malfunction
  • Grounding problems
  • Short circuit in the circuit

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the brake pedal sensor
  3. Check circuit grounding
  4. Replace damaged components

Related codes

B1485B1487C0040

FAQ

What does the B1486 code mean?

B1486 is an OBD-II diagnostic trouble code that indicates: Brake Pedal Input Circuit Ground Short

What causes a B1486 error code?

The most common causes of B1486 include: Wiring harness damage; Brake pedal sensor malfunction; Grounding problems; Short circuit in the circuit.

How do I fix a B1486 diagnostic trouble code?

To fix B1486: Check the integrity of the wiring harness. Check the brake pedal sensor. Check circuit grounding. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1486?

Limited driving only, diagnose soon

How much does it cost to fix B1486?

The estimated repair cost for B1486 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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