October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Ignition Coil Resistance

Measure primary coil resistance between terminal No. 1 and terminal No. 15. See Fig 1 . Secondary coil resistance cannot be measured. See IGNITION COIL RESISTANCE table.

Fig 1: DIS Ignition Coil Schematic & Terminal Identification (540i, 740i, 740iL)