Actron AutoAnalyzer CP7665 - Manual (Page 22)

22
manual for location of second-
ary ignition coil terminal.
• Verify BLACK test lead is con-
nected to primary ignition coil
negative (-) terminal.
13. View reading on display.
14. If vehicle is DIS, connect test
leads to terminals of the sec-
ondary ignition coil. Repeat
for remaining ignition coils.
15. Test Results - Secondary Coil
• Typical resistance range of
secondary ignition coils is
6.0k
Ω
- 30.0k
Ω
.
• R e f e r t o v e h i c l e s e r v i c e
manual for your vehicles re-
sistance range.
Fig. 23
Typical Cylindrical
Ignition Coil
Black
Red
Primary
Coil
Secondary
Coil
16. Repeat test procedure for a
HOT ignition coil.
NOTE: It is a good idea to test
ignition coils when they are both
hot and cold, because the resis-
tance of the coil could change
with temperature. This will also
help in diagnosing intermittent
ignition system problems.
17. Test Results - Overall
Good Ignition Coil: Resistance
readings in Steps 10, 15 and 16
were within manufacturers speci-
fication.
Bad Ignition Coil: Resistance
readings in Steps 10, 15 and 16
are not within manufacturers
specification.