9-3 Hatchback (9400) L4-2.0L Turbo (B205) (2000)
As soon as the control module receives impulses from the crankshaft position sensor, it will ground the main relay and fuel pump relay.
If there is a sensor malfunction or a break in the circuit, the engine will not start. Sensor resistance is 540 ±55 ohms.
Diagnosis
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If the control module loses track of the crankshaft position while the engine is running, diagnostic trouble code P0336 will be generated.
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If the crankshaft position is absent, the engine will not start
System reaction to a fault
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There is no substitute value for the crankshaft position sensor.
Engine Speed Signal
The control module transmits the engine speed signal from pin 58.
The signal is a pulse train that varies between 0 and B+ and is approx. 30 Hz at idling speed and approx. 85 Hz at 2500 rpm. This corresponds to 2
pulses per crankshaft revolution.
The engine speed signal is used by the main instrument unit and the automatic transmission control module.
Diagnosis