B0516

Speedometer Signal Circuit Malfunction

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

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
If necessary, replace the speed sensor or repair the wiring
Reset the error and check the system operation

Related codes

U0121 U0122 B0517