B3445

Stop Lamp Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$6–56 (est.)

Symptoms

Brake lights don't work
The malfunction indicator on the dashboard flashes or lights up
Error B3445 in diagnostic scanner memory

Causes

Burnt out brake light bulbs
Brake light relay malfunction
Wiring harness damage
Short circuit in the circuit
Brake light switch malfunction

How to Fix

Check brake light bulbs and replace if necessary
Check fuses and relays associated with the brake light circuit
Inspect the wiring harness for damage
Check brake light switch
If necessary, replace faulty components

Related codes