OBD Guide
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B2566

Right Tail Lamp Circuit Short to Ground

B2566 is an OBD-II diagnostic trouble code meaning: Right Tail Lamp Circuit Short to Ground. Common causes: damage to wire insulation, contact corrosion. Estimated repair cost: $11–56.

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

Symptoms

  • The right rear lamp does not work
  • Fuse blown
  • Flashing or unstable lamp operation

Causes

  • Damage to wire insulation
  • Contact corrosion
  • Lamp failure
  • Incorrect wiring connection
  • Wiring harness damage

How to Fix

  1. Check the condition of the right rear lamp
  2. Inspect the wiring harness for damage
  3. Check the integrity of the circuit and contacts
  4. Replace damaged wires or lamp
  5. Check lamp operation after repair

Related codes

B2565B2567B2570

FAQ

What does the B2566 code mean?

B2566 is an OBD-II diagnostic trouble code that indicates: Right Tail Lamp Circuit Short to Ground

What causes a B2566 error code?

The most common causes of B2566 include: Damage to wire insulation; Contact corrosion; Lamp failure; Incorrect wiring connection.

How do I fix a B2566 diagnostic trouble code?

To fix B2566: Check the condition of the right rear lamp. Inspect the wiring harness for damage. Check the integrity of the circuit and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2566?

Limited driving only, diagnose soon

How much does it cost to fix B2566?

The estimated repair cost for B2566 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat