ENGINE ELECTRICAL
-
Charging System
16-11
ABNORMAL WAVE-FORMS EXAMPLES
NOTE
1.
The size of the wave-form patterns differs largely depending on the adjustment of the variable knob
on the analyzer.
2.
Identification of abnormal wave-forms is easier when there is a large output current (regulator is not
operating). (Wave-forms can be observed when the headlights are illuminated.)
3.
Check the conditions of the charge light (illuminated/not illuminated) also, and carry out a total check.
Abnormal wave-forms
Problem cause
Example 1
l
Open diode
AAL
ZELOlZO
Example 2
0
Short in diode
Z7EL0121
Example 3
0
Broken wire in statorcoil
27EL0122
Example 4
0
Short in
stator
coil
Z7EL0123
Example 5
1
r2rrirl
0
Open supplementary
diode
27EL0124
4t
this time, the charge light is illuminated.
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