Hi all

My 89 740Ti has a ABS problem

The dash light flashes on and off and the surge protector relay click on and off very rapidly. When there is body and supension movement

I have cleaned the front sensors

I thought that one of the sensor wire is breaking down but I have disconnected each one of the front sensor wires at the connection neat the strut towers and it still has the same problems

If the rear sensor wire is breaking down does it affect the speedo while it is braking down.

Or is the speedo only affected when the wire fails complete

I understand that Diagnostic Code can be retrieve from the ABS computer. Where is the Diagnostic Link Connector box in a 89 740Ti.

Is there a special tool required to retrieve the codes

Where do I get one of these tools

George

Cars I own

Restoration project
Personal import 1974 144gl B20a M40

Cars I have owned
1982 244GL B23e/M45
1986 760GLE B28f/AW71

Everyday car
1989 740 turbo B230ft/M47 5 speed