Technical Definition:

(Ignition Coil A) Primary / Secondary Circuit

Technical Description:

Possible Causes:

Possible Symptoms:

Ignition Coil 1 Primary/Secondary Circuit Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

– Faulty Ignition Coil 1
– Ignition Coil 1 harness is open or shorted
– Ignition Coil 1 circuit poor electrical connection
– Faulty Engine Control Module (ECM)

Specific Makes:

– Lack/Loss of Power
– Engine may be harder to start
– Engine hesitation
– Rough engine idle