OBD Guide
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B16D0

Left DRL Lamp Control Circuit Low

B16D0 is an OBD-II diagnostic trouble code meaning: Left DRL Lamp Control Circuit Low. Common causes: burnt out drl lamp, open or short circuit in wiring harness. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Left DRL does not work
  • Flashing or dim light of left DH/prevention measures
  • Message on the dashboard about a lighting fault

Causes

  • Burnt out DRL lamp
  • Open or short circuit in wiring harness
  • Faulty DRL relay
  • Problems with the lighting control unit
  • Contact corrosion

How to Fix

  1. Check the DRL lamp for burnout
  2. Inspect the wiring harness for damage
  3. Check relays and fuses
  4. Test the control unit
  5. Clean or replace corroded contacts

Related codes

B16D1B16D2B16D3

FAQ

What does the B16D0 code mean?

B16D0 is an OBD-II diagnostic trouble code that indicates: Left DRL Lamp Control Circuit Low

What causes a B16D0 error code?

The most common causes of B16D0 include: Burnt out DRL lamp; Open or short circuit in wiring harness; Faulty DRL relay; Problems with the lighting control unit.

How do I fix a B16D0 diagnostic trouble code?

To fix B16D0: Check the DRL lamp for burnout. Inspect the wiring harness for damage. Check relays and fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B16D0?

Limited driving only, diagnose soon

How much does it cost to fix B16D0?

The estimated repair cost for B16D0 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat