Cylinder Identification Sensor: Testing and Inspection

Fig. 70 Inductive cylinder identification sender:

Using an Ohmmeter, check the resistance between terminals 8, 9, and 10 on the engine diagnostic plug. The resistance should be:
Between 8 and 10 less than 1 Ohm, at 20°C (68°F)
Between 8 and 9, or 10 and 9 at least 60K Ohms
Replace the sensor if it is not within specification.*

* The TDC sensor is used for checking ignition timing only. It has no Motronic function.