P2321

Ignition Coil H Primary Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Misfires
Reduced engine power
Increased fuel consumption
Check Engine Light Is On
Unstable engine idling

Causes

Faulty ignition coil
Damaged wires or connectors
Short circuit in the circuit
Engine control unit (ECU) malfunction
Poor ground connection

How to Fix

Check the condition of the ignition coil
Inspect wires and connectors for damage
Check continuity with a multimeter
Check ground connections
If necessary, replace the ignition coil

Related codes

P2308 P2311 P2324