Steering wheel angle sensor, power steering (747)
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Steering wheel angle sensor, power steering (747)
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Gives information on the steering wheel speed.
The control valve has six segments each displaced 60 degrees. The sensor is inductive and is mounted in the steering gear housing.
Pin
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Signal type
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Description
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1
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B+
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Sensor ground
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2
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Signal ground
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Sensor supply
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3
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Signal input
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Signal from sensor
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The sensor is supplied power from pin 1 and ground on pin 2 of the EHPS control module. Pin 3 provides information on steering speed via a 500 Hz PWM signal. The pulse ratio carries information on steering speed - 12.5% to 87.5%, which corresponds to 0 degrees/second to 60 degrees/second.