OBD Guide

B16B0

Left Stop Lamp Control Circuit Low

B16B0 is an OBD-II diagnostic trouble code meaning: Left Stop Lamp Control Circuit Low. Common causes: burnt out brake light bulb, poor contact in the lamp socket. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$6–33 (est.)

Symptoms

  • Left brake light does not work
  • Brake light flashing or dim
  • Dashboard warning

Causes

  • Burnt out brake light bulb
  • Poor contact in the lamp socket
  • Open or shorted wiring harness
  • Corrosion of connectors
  • Control module malfunction

How to Fix

  1. Check the condition of the brake light lamp
  2. Inspect the lamp socket and contacts for corrosion or damage.
  3. Check the integrity of the wiring harness and connectors
  4. Measure the voltage in the control circuit
  5. If necessary, replace the lamp or repair the wiring harness

Related codes

FAQ

What does the B16B0 code mean?

B16B0 is an OBD-II diagnostic trouble code that indicates: Left Stop Lamp Control Circuit Low

What causes a B16B0 error code?

The most common causes of B16B0 include: Burnt out brake light bulb; Poor contact in the lamp socket; Open or shorted wiring harness; Corrosion of connectors.

How do I fix a B16B0 diagnostic trouble code?

To fix B16B0: Check the condition of the brake light lamp. Inspect the lamp socket and contacts for corrosion or damage.. Check the integrity of the wiring harness and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B16B0?

Do not drive — repair immediately

How much does it cost to fix B16B0?

The estimated repair cost for B16B0 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat