OBD Guide

B16B3

Right Stop Lamp Control Circuit

B16B3 is an OBD-II diagnostic trouble code meaning: Right Stop Lamp Control Circuit. Common causes: burnt out brake light bulb, broken wire in the harness. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–56 (est.)

Symptoms

  • Right brake light doesn't work
  • Right brake light flashing
  • Dashboard warning

Causes

  • Burnt out brake light bulb
  • Broken wire in the harness
  • Contact corrosion
  • BCM malfunction
  • Problems with the brake pedal sensor

How to Fix

  1. Check the lamp is working properly
  2. Inspect the condition of contacts and wiring
  3. Check the voltage in the circuit
  4. Scan the BCM for errors
  5. If necessary, replace faulty components

Related codes

FAQ

What does the B16B3 code mean?

B16B3 is an OBD-II diagnostic trouble code that indicates: Right Stop Lamp Control Circuit

What causes a B16B3 error code?

The most common causes of B16B3 include: Burnt out brake light bulb; Broken wire in the harness; Contact corrosion; BCM malfunction.

How do I fix a B16B3 diagnostic trouble code?

To fix B16B3: Check the lamp is working properly. Inspect the condition of contacts and wiring. Check the voltage in the circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B16B3?

Do not drive — repair immediately

How much does it cost to fix B16B3?

The estimated repair cost for B16B3 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat