mitsubishi Workshop Repair Guides

Mitsubishi Workshop Service and Repair Manuals

Relays and Modules - Restraint Systems > < Ignition Control Module|Testing and Inspection
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Wave Pattern Observation Points

Point: The power transistor control signal (ignition timing) is advanced when the engine speed is increased.

Examples of Abnormal Wave Patterns

Example 1 (Wave pattern during engine cranking)

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Cause of problem
Open-circuit in ignition primary circuit

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Wave pattern characteristics
Voltage value is too low.

Relays and Modules - Restraint Systems > < Ignition Control Module|Testing and Inspection