OBD Guide

B0516

Speedometer Signal Circuit Malfunction

B0516 is an OBD-II diagnostic trouble code meaning: Speedometer Signal Circuit Malfunction. Common causes: open or shorted wiring harness, speed sensor malfunction. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Speedometer not working or jumping
  • Incorrect odometer readings
  • Check Engine Light Is On
  • Disabling systems that use speed data (for example, cruise control)

Causes

  • Open or shorted wiring harness
  • Speed sensor malfunction
  • Problems with contacts in connectors
  • Malfunction of the speedometer or instrument cluster
  • ECU error

How to Fix

  1. Check the condition of the wiring harness and connectors for damage
  2. Test the speed sensor (with a multimeter or oscilloscope)
  3. Check the signal at the input of the instrument cluster
  4. If necessary, replace the speed sensor or repair the wiring
  5. Reset the error and check the system operation

Related codes

Error B0516 by Vehicle Brand

FAQ

What does the B0516 code mean?

B0516 is an OBD-II diagnostic trouble code that indicates: Speedometer Signal Circuit Malfunction

What causes a B0516 error code?

The most common causes of B0516 include: Open or shorted wiring harness; Speed sensor malfunction; Problems with contacts in connectors; Malfunction of the speedometer or instrument cluster.

How do I fix a B0516 diagnostic trouble code?

To fix B0516: Check the condition of the wiring harness and connectors for damage. Test the speed sensor (with a multimeter or oscilloscope). Check the signal at the input of the instrument cluster. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0516?

Do not drive — repair immediately

How much does it cost to fix B0516?

The estimated repair cost for B0516 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat