P03FB

Ignition K Control Signal Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Misfires
Unstable engine operation
Power Loss
Increased fuel consumption

Causes

Open or short circuit in wiring harness
Ignition coil malfunction
Problems with connectors
ECU malfunction

How to Fix

Check wiring harness for damage
Check ignition coil connectors
Check the ignition coil
Check ECU for errors

Related codes

P0300 P0301 P0302 P0303 P0304