P1374: Crankshaft Position (CKP)/Ignition Coil – Cylinder 4 – Early Activation Fault

P1374 is a manufacturer-specific powertrain diagnostic trouble code: Crankshaft Position (CKP)/Ignition Coil – Cylinder 4 – Early Activation Fault.

Detailed diagnostic information for this code has not been added yet. Consult your vehicle's service manual or a qualified mechanic for specific guidance.