P2318

Ignition Coil G Primary Control Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–67 (est.)

Symptoms

Misfires
Check Engine light comes on
Reduced engine power
Unstable engine idling
Poor fuel economy

Causes

Faulty ignition coil G
Open or short circuit in the ignition coil control circuit G
Poor connection in ignition coil G circuit
Engine control module (ECU) malfunction
Damaged wiring harness

How to Fix

Check ignition coil G for damage and resistance
Check ignition coil G wiring and connectors for opens, shorts and corrosion.
Check voltage and ground at ignition coil G
Replace faulty ignition coil G
Check the engine control module (ECU) for faults

Related codes

P2315 P2316 P2317 P2319