12 13 ... Checking Secondary Signal For Stationary Ignition Distribution

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Special tools required:

12 7 030

Remove ignition coil. Clip special tool 12 7 030 on relevant ignition coil to be tested. Clip high tension clip around ignition lead.

Fig 1: Removing Ignition Coil

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Connect earth lead of adapter to vehicle earth and ignition coil. Connect up diagnosis connector.

If trigger signal is not present (terminal 1), connect black clip of universal adapter cable to pin 1 of primary adapter cable.

Fig 2: Connecting Earth Lead Of Adapter To Vehicle Earth And Ignition Coil

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Produce a stationary signal by pressing key R on the tester.

NOTE:

Neighboring ignition leads could produce interference on the screen of the oscilloscope.

Interrogate fault memory and its fault reports.

Fig 3: Identifying Waveform

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