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BMW E38 7 Series 1995-2001 (735i, 740i/iL, 750i/iL) BMW E38 ABS REPAIRS


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Last Post: Dec 26, 2010 1:53 AM Last Post By: wolverine
doneright

Posts: 3
Registered: 09/18/08
BMW E38 ABS REPAIRS
Posted: Aug 10, 2009 3:25 PM
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RECEIVED BMW 7 SERIES 1995-91 TODAY, ABCS CODES NOT IN MANUAL. NEED INFORMATION ON CODE DESCRIPTION, DIAGNOSE AND REPAIR OF ABS SYSTEM. ABS CODE 79 ROTATION SENSOR AND CODE 51 PRESSURE SENSOR THANK YOU
Nick Czerula

Posts: 270
Registered: 10/16/06
Re: BMW E38 ABS REPAIRS
Posted: Aug 11, 2009 10:08 AM   in response to: doneright in response to: doneright
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What is the exact year and model on BMW you are working on?

Some quick general info:
The pressure sensor is 3 wires. It is located on hydraulic unit.
Power supply, ground and sensor signal.

The rotation sensor has 6 wires.
If I remember correctly it has two reference voltages, two sensor gound pins and two signal wires.

Once you supply the year and model I can try to be more specific.

doneright

Posts: 3
Registered: 09/18/08
Re: BMW E38 ABS REPAIRS
Posted: Aug 11, 2009 1:14 PM   in response to: Nick Czerula in response to: Nick Czerula
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2001 bmw 750il WBAGJ03421DD74159
Nick Czerula

Posts: 270
Registered: 10/16/06
Re: BMW E38 ABS REPAIRS
Posted: Aug 11, 2009 1:34 PM   in response to: doneright in response to: doneright
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Rotation sensor
For rotational speed, the sensor produces a reference signal of 2.5 volts and a linear voltage
signal from 0.7 to 4.3 volts. This linear voltage input signal is used by the DSC control
module as the degree of rotational rate (yaw).
The sensor also produces a linear voltage signal for the lateral acceleration (G-force) that
ranges from 0.5 to 4.5 volts. The DSC control module uses this input to determine the side
forces acting on the vehicle for DSC regulation.

Pressure sensor
The sensor receives its power from the DSC control module and produces a linear
voltage input signal ranging from 0.5 to 4.5 volts depending on how hard the brakes are
applied.
wolverine

Posts: 6
Registered: 12/26/10
Re: BMW E38 ABS REPAIRS
Posted: Dec 26, 2010 1:53 AM   in response to: Nick Czerula in response to: Nick Czerula
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i have a 2001 740IL can you translate the abs codes for me

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