Operation CHARM: Car repair manuals for everyone.

Engine Speed/Position Pulse Generator (Sensor)

Engine Speed/Position Pulse Generator (Sensor):

Check function:

•D• 200 - The engine speed signals can be monitored at starting speed or when the engine is running. Further tests are also possible with the oscilloscope. •M• 23/24. Connect terminals for oscilloscope at component connector and start engine. An AC voltage characteristic curve with positive and negative half-waves should appear on the display screen.

Resistance test:

The resistance can be measured directly at the component connector (at the connector strip for injector valves). Refer to schematic for wiring diagram. For technical data, see - Technical Data -.

Possible cause:

If wire, plug connection or resistance are OK.: check distance of the pulse generator to the incremental wheel on the vibration damper -0.15 to 1.5 mm.

Setting at adjustable holder - 1.0 +/- 0.3 mm.