Launch X431 Scopebox User Manual

LAUNCH X431 PAD Scopebox User’s Manual
Fig.4-10
Fig. 4-11 shows the fault of low-voltage waveform in electronic ignitio
n system.
The voltage does not rise during magnetizing, which indicates that the effect of
limitation of the circuit failed and no components on distributorless ignition
system can be adjusted. When this waveform is abnormal, you can only
replace the ignition coils, igniter, ignition signal generator and cam position
sensor, etc., one by one, to find out the faulty component or module.
Fig. 4-11
The secondary waveform is also affected by the spark plug, the combustion
process, mixt
ure gas composition, the engine thermal state of the ignition coil,
etc., which is more complicated. The following lists a large number of
measured secondary faulty waveform for reference. Since various factors lead
to the failures, Fig. 4-12 just shows the major possible factors for the failures.
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Launch X431 Scopebox Specifications

General

Brand	Launch
Model	X431 Scopebox
Category	Test Equipment
Language	English