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Wiring diagrams Section: DOHC Petrol Engine

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Crankshaft Sensor (Hall Type), Simtec 56.5 Opel Vectra B

DOHC Petrol Engine 1 illustration

Objective:

Checking Operation of the hall sensor on the crankshaft.

Measurement:

Plot of voltage at the signal output for the hall sensor on the crankshaft.

Preparation:

Switch off the engine and ignition.

Connections:

INPUT A	COM/TRIGGER	INPUT B
Connect the red measurement lead to pin 2 of the plug connector for the hall sensor on the crankshaft. Connect the black ground lead to pin 1.

Procedure Tech 31:

1. Download the Reference curve.
2. Start the engine and allow it to idle.

Reference Curve:

Crankshaft Sensor (Hall Type), Simtec 56.5

The signal plot should be continuous and regular. If the amplitude of the signal plot varies greatly, in spite of the engine speed remaining constant, the sensor disc and sensor must be checked for soiling, concentricity and correct shape.