3 Series E36 318i (M43) CONVER
12 13 009
Checking ignition coil (primary coil) (M43,
M44)
Circuit diagram of compact ignition coil in breakerless ignition
distribution system:
3
Terminal 4a: joint ground of secondary coils to DME control
unit
2
Terminal 15
5
Terminal 1 of ignition coil 4
7
Terminal 1 of ignition coil 3
6
Terminal 1 of ignition coil 2
1
Terminal 1 of ignition coil 1
4
Terminal 4 High voltage to spark plug
Multimeter Test:
Resistance of primary coils = 0.4 ... 0.8
Ω
Measurements of primary connection between:
-
Pin 1 / pin 2 (terminal 1/15)
-
Pin 6 / pin 2 (terminal 1/15)
-
Pin 7 / pin 2 (terminal 1/15)
-
Pin 5 / pin 2 (terminal 1/15)
Resistance of the secondary coil cannot be measured.
Pin assignment, primary connection
-
Pin 1 = terminal 1 of ignition coil 1
-
Pin 2 = terminal 15
-
Pin 3 = terminal 4a
-
Pin 4 = not allocated
-
Pin 5 = terminal 1 of ignition coil 4
-
Pin 6 = terminal 1 of ignition coil 2
-
Pin 7 = terminal 1 of ignition coil 3
RA Checking ignition coil (primary coil) (M43, M44)
BMW AG - TIS
24.01.2013 06:31
Issue status (12/2007) Valid only until next DVD is issued
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