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

WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

NOTE: For special tools, refer to ENGINE ELECTRICAL SYSTEM - SPECIAL TOOLS - 645CI .

12 7 030

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: Connecting Test Equipment

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Connect earth lead of adapter to vehicle earth and ignition coil.

Fig 2: Connecting Earth Lead

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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.

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

Fig 3: Identifying Stationary Signal

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

Refer to the fault memories of engine control units for additional troubleshooting.

Interrogate fault memory and its fault reports.