Hello Martin,
some times it's better to use the VIN.
At my knowledge, this ignition coils are only connected with 3 wires. Secondary resistance can't be measured.
Primary resistance
pin 1 - pin 3: 0.3 Ω ... 4.0 Ω
Insulation, primary to secondary
pin 1 - secondary: greater than 500 kΩ
Insulation, secondary to ground
pin 2 - secondary: greater than 500 kΩ
It is not possible to measure and evaluate the secondary resistance of the ignition coil with a multimeter because a diode to suppress switch-on sparking is connected in series in the secondary circuit beside the secondary winding.
Hope this helps.