OBD Guide

B16B2

Left Stop Lamp Control Circuit Open

B16B2 is an OBD-II diagnostic trouble code meaning: Left Stop Lamp Control Circuit Open. Common causes: burnt out lamp, broken or damaged wiring. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Left brake light does not work
  • The malfunction indicator on the dashboard lights up
  • The error is stored in the diagnostic memory

Causes

  • Burnt out lamp
  • Broken or damaged wiring
  • Faulty relay or fuse
  • Problems with contacts in the lamp socket
  • Control unit malfunction

How to Fix

  1. Check the condition of the lamp, replace if necessary
  2. Inspect wiring for breaks or damage
  3. Check fuses and relays associated with the brake light circuit
  4. Clean the contacts in the lamp socket
  5. If necessary, diagnose the control unit

Related codes

FAQ

What does the B16B2 code mean?

B16B2 is an OBD-II diagnostic trouble code that indicates: Left Stop Lamp Control Circuit Open

What causes a B16B2 error code?

The most common causes of B16B2 include: Burnt out lamp; Broken or damaged wiring; Faulty relay or fuse; Problems with contacts in the lamp socket.

How do I fix a B16B2 diagnostic trouble code?

To fix B16B2: Check the condition of the lamp, replace if necessary. Inspect wiring for breaks or damage. Check fuses and relays associated with the brake light circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B16B2?

Limited driving only, diagnose soon

How much does it cost to fix B16B2?

The estimated repair cost for B16B2 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat