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HOMESERVICE MANUALSFORD2018FUSION ENERGI TITANIUMREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - DESCRIPTION & OPERATION (HYBRID)IGNITION SYSTEMINTEGRATED ELECTRONIC IGNITION SYSTEM
2018 Ford Fusion Energi Titanium

Integrated Electronic Ignition System

2018 Ford Fusion Energi TitaniumSECTION Integrated Electronic Ignition System

The integrated electronic ignition system consists of a crankshaft position (CKP) sensor, coil on plug (COP), connecting wiring, and a PCM. For additional information on the ignition system components, refer to ENGINE CONTROL COMPONENTS . The COP integrated electronic ignition system eliminates the need for spark plug wires, but does require input from the camshaft position (CMP) sensor. Operation of the components are as follows:

  1. The CKP sensor indicates the crankshaft position and speed by sensing a missing tooth on a pulse wheel mounted to the crankshaft. The COP integrated electronic ignition system uses the CMP sensor to identify the compression stroke of cylinder 1, and to synchronize the firing of the individual coils.
  2. The PCM uses the CKP signal to calculate a spark target and the CMP signal to identify the TDC of compression of cylinder 1 to synchronize the firing of the individual coils.
  3. The COPs receive their signal from the PCM to fire at a calculated spark target. The COP system fires only one spark plug per coil and only on the compression stroke.
  4. The PCM processes the CKP signal and broadcasts the signal to the controller area network (CAN). The PCM also sends the signal to the TCM as a hardwired clean tachometer output (CTO) signal.
    Fig 1: Typical COP Integrated Electronic Ignition System Diagram
    G06054298Courtesy of FORD MOTOR CO.
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