Summit Wagon FWD L4-1795cc 1.8L SOHC (1994)
Ignition Coil And Power Transistor Waveforms
Examples Of Abnormal Wave Patterns
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Example 1
Wave pattern during engine cranking
Cause of problem
Open-circuit in ignition primary circuit
Wave pattern characteristics
Top-right part of the build-up section cannot be seen, and voltage value is approximately 2V too low.
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Example 2
Wave pattern during engine cranking
Cause of problem
Malfunction in ignition power transistor
Wave pattern characteristics
Power voltage results when the ignition power transistor is ON.
