Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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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.