12 13... Checking secondary signal for stationary ignition distribution

Special tools required:

Engine Test Step 10

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

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 Diagnosis Connector

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

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

Fig 3: Identifying Tester Signal