B0540

Speedometer Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Speedometer doesn't work
Incorrect speedometer readings
Check Engine light comes on
Systems that depend on speed data do not work (ABS, ESP, cruise control)

Causes

Broken or damaged wiring
Speed sensor malfunction
Dashboard problems
Control module malfunction

How to Fix

Check the integrity of wiring and connections
Check the operation of the speed sensor
Check the dashboard for malfunctions
Diagnose the control module

Related codes

B0541 B0542 P0500