P030E

Ignition B Control Signal Circuit Low

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Misfire in cylinder B
Unstable engine operation
Power reduction
Increased fuel consumption

Causes

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

How to Fix

Check the wiring harness for opens and shorts
Check the ignition coil
Check connectors and contacts
If necessary, replace faulty components

Related codes

P0301 P0302 P0303 P0304