Pick-Up Coil Resistance Check

Turn ignition switch off, and disconnect harness connector from control module. Set ohmmeter to x100 scale. Connect ohmmeter leads to terminals 7 and 31d of harness connector. See Fig 1 . Measure pick-up coil resistance.

Fig 1: Ohmmeter Hookups for Pick-Up Coil Resistance and Short Checks
If resistance readings are not to specifications, remove connector from distributor. Take reading at pick-up coil pins at distributor.
If readings are still not to specifications, replace pick-up coil. If correct readings are obtained at distributor, but not at harness connector, replace harness.

PICK-UP COIL RESISTANCE SPECIFICATIONS

Application	Ohms
BMW	520-700