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

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 BMW 540i, 2002 BMW 540i, 2001 BMW 540i, 2000 BMW 540i, and 1999 BMW 540i. However, it is still accessible from the selected car via links, so may be relevant.

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: Identifying Clip Special Tool 12 7 030

Courtesy of BMW OF NORTH AMERICA, INC.

Connect ground lead of adapter to vehicle ground 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 Ground Lead Of Adapter To Vehicle Ground And Ignition Coil

Courtesy of BMW OF NORTH AMERICA, INC.

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

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

Refer to the SELF-DIAGNOSTIC SYSTEM (1997) , SELF-DIAGNOSTIC SYSTEM (1998) , SELF-DIAGNOSTIC SYSTEM (1999) , SELF-DIAGNOSTIC SYSTEM (2000) or SELF-DIAGNOSTICS - V8 & V12 (2001) .

Fig 3: Identifying Secondary Signal For Stationary Ignition Distribution

Courtesy of BMW OF NORTH AMERICA, INC.