Scope Diagnosis Patttrns - Jeep J-10 Series 1982 Technical & Service Manual

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GENERAL SERVICE AND DIAGNOSIS 1A-13
, SPARKPLUG
I FIRES
PRIMARY WINDING I
ELECTRO
MAGNETIC FIELD
COLLAPSES ANO
INOUCES HIGH
VOLTAGE INTO
SECONDARY
WINDING.
HEISYSTEM
TRIGGER WHEa
TOOTH AP
PROACHES ALIGN
MENT WITH THE
PICKUP COIL ANO
PRIMARY WINDING
CURRENT IN
CREASES. WHtCH
RESULTS IN LOW
VOLTAGE BEING
INDUCED INTO
THE SECONOARY
WINOING.
-^hW
UNUSED
C TRIGGER °
ENERGY
| WHEEL I
OSCILLATIONS
TOOTH ,
GRADUALLY
1 SEPA- 1
DAMPEN.
1 RATED |
1 FROM '
<PICKUP 1
• COIL. '
1 NO 1
• CURRENT '
I FLOW. |
'! 1
| 1
| 1
1 1
, - ... iftnA^t
SPARK PLUG FIRES
PRIMARY WINDING
ELECTROMAGNETIC
FIELD COLLAPSES AND
INDUCES HIGH VOLTAGE
INTO SECONOARY
WINOING.
UNUSED
ENERGY
OSCILLATIONS
GRADUALLY
DAMPEN.
SSI SYSTEM
TRIGGER
WHEa
TOOTH
SEPA
RATED
FROM
PICKUP
COtL
NO
CURRENT
FLOW.
TRIGGER
WHEa
TOOTH AP
PROACHES
ALIGN
MENT WITH
THE PICKUP
COIL ANO
PRIMARY
WINDING
CURRENT
INCREASES.
WHICH
RESULTS
IN LOW
VOLTAGE
BEING IN
DUCED
INTO THE
SECONDARY
WINDING.
Rg. 1A-1 Scope Diagnosis Patttrns
CIRCUIT OPEN
NO CURRENT FLOW I
PRIOR TO
ELECTROMAGNETIC |
FIELD COLLAPSING. .
CIRCUIT OPEN
NO CURRENT FLOW PRIOR
TO ELECTROMAGNETIC
FIELD COLLAPSING.
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