General Information

Engine Control
P0351 Ignition Coil - General Information

Component Location





General Description

With the ignition switch in the ON or START position, voltage is applied to the ignition coil. Each ignition coil consists of two coils, a primary and secondary coil. The coils are mounted on top of the spark plugs. To energizing the primary ignition coils, the Engine Control Module (PCM) provides the ground for the primary circuit. The PCM uses the crankshaft position sensor and camshaft position sensor signal to time the energizing of the coil. When a primary ignition coil is energized and de-energized, the secondary coil produces a high voltage spike to the attached spark plug.

DTC Description

Checking output signals from ignition coils every 10 sec. under detecting condition, if the signals indicating open or short in the circuit are detected for more than 5 sec., PCM sets this DTC.

DTC Detecting Condition





Specification





Diagnostic Circuit Diagram





Signal Waveform & Data




Fig.1) Normal waveforms of primary coil at idle.