'02 ABS pump pressure switch wiring

J

Jim Blackwood

New Member

Posts

3

• May 20, 2023

• #1

Honestly I'm a little surprised it has 5 wires. Black, black, black/white, black/yellow and black/green. Just sitting here one of the blacks is connected to the black/white and the black/yellow.

Can anybody explain how this switch works? I suppose the two signal wires b/y and b/w open at different pressures and at some point the b/g closes to the other Black wire but that's just a guess. I can test it but I haven't got a reservoir and pressure gage hooked up yet. Anybody got the scoop on this? THX

Jim

 

marjon

Well-Known Member

Full Member

Posts

16,848

Location

Bulgaria

• May 21, 2023

• #2

What vehicle are we talking about?

The P38 uses those colours.

J

 

Attachments

• ABS switch.pdf

  131.1 KB · Views: 235

J

Jim Blackwood

New Member

Posts

3

• May 21, 2023

• #3

That should do it, thanks a bunch. It's from a 95-02 Range Rover HSE but all I'm really concerned with is the cutoff switch for the pump so the black/yellow wire is the one I'm looking for.

Jim

 

marjon

Well-Known Member

Full Member

Posts

16,848

Location

Bulgaria

• May 21, 2023

• #4

Also forgot to say Welcome .

Are we allowed to see your pile of bits?.

J

 

J

Jim Blackwood

New Member

Posts

3

• May 21, 2023

• #5

Thanks. I'm sure you would not be interested really. Not enough to make a pile even. I have this ABS pump and an air ride compressor and that's it. The compressor is mounted in the trunk of my MGB from when I was playing with air bags in the front suspension (turned out not so good for a sports car but now I do at least have on board air), and this pump is to be the heart of a brake booster system on the same car if it all works out as planned. Sorry, really didn't mean to mislead...

JIm