Actron CP7665 Operations Instructions download pdf (Page 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

6.0kΩ - 30.0kΩ.

• Refer to vehicle service

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.

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Actron CP7665 Operations Instructions Page 22

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