Secondary Ignition Testing

The lab scope function can be used to display secondary ignition waveforms for many systems (distributor, CIC - Coil In Cap, Waste spark, COP - Coil On Plug). To display secondary ignition waveforms, optional secondary ignition coil adapter(s) and a coil adapter lead assembly are required.

Contact your sales representative to purchase the optional adapter leads and/or Secondary Ignition Clip-on or COP/CIC Adapters.

Adapter lead assembly needed:

●

Secondary Coil Adapter Lead Assembly - connects the diagnostic tool to a secondary ignition adapter (yellow and black scope connectors and black RCA type adapter connector).

Secondary Ignition Adapters available:

Different secondary ignition coil adapters are available as optional equipment. These adapters attach to either the secondary lead (spark plug lead) or directly to the secondary ignition coil in order to pick up the secondary ignition signal.

●

Universal kV Ignition Clip-on adapter - clips over a spark plug or coil lead.

●

Universal stick and flag type adapters - are loosely positioned next to or on a secondary ignition coil.

–

General purpose single flag pick-up.

–

General purpose stick pick-up.

●

Vehicle specific Clip-on adapters - are directly attached to (or next to) a secondary ignition coil (COP type) or to a distributor cap (CIC type). Secondary ignition coil-on-plug (COP) and coil-in-cap (CIC) adapters are available for universal and engine specific applications. All the adapters listed are available individually.

–

OEM specific COP adapters:

●

Ford (COP-1)

●

Chrysler (COP-2)

●

VW/Audi (COP-3)

●

Acura/Honda/Isuzu (COP-4)

●

Volvo/BMW (COP-5)

●

Mercedes-Benz (COP-6)

●

Mercedes-Benz Dual Type (COP-7)

●

BMW (COP-8)

●

Lexus (COP-9)

●

Chrysler/Jeep/Lexus/Toyota (COP-11)

–

OEM specific CIC adapters:

●

GM HEI (CIC-1)

●

Toyota/Honda (CIC-2)

Connecting the Secondary Coil Adapter Leads

1.

Connect the black (ground) lead into the diagnostic tool test lead ground jack.

2.

Connect the yellow lead into the diagnostic tool test lead channel 1 jack.

3.

Connect the adapter lead ground clamp to vehicle ground. If a jumper wire is used to extend the length of the adapter lead ground clamp lead, keep it as short as possible.

4.

Connect the adapter lead RCA plug into the secondary ignition "clip-on" or COP/CIC coil adapter as needed.

5.

Clamp the secondary clip-on adapter over a spark plug or coil lead, or attach the applicable COP/CIC coil adapter to the vehicle ignition coil.

6.

Isolate the leads from other components, to avoid any unwanted noise that could be induced onto the signal.

7.

From the lab scope function, select the Ignition Probe (probe setting).

8.

If needed, turn the Invert function on.

Once a signal is displayed, further channel settings may be required to display the pattern characteristics you a looking for.

Typical Secondary Ignition Signal