P1374 Reference definition
Crankshaft Position (CKP)/Ignition Coil – Cylinder 4 – Early Activation Fault
powertrain
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This is an imported reference definition. Manufacturer-specific meanings may vary. Confirm the model, year and engine in the relevant service information before using it.
A source-reviewed diagnostic guide is not yet available for this entry. The code definition alone does not identify the cause or an appropriate repair.