Vehicle & Technical > Discovery
DIY ABS diagnostics
jnoshea:
Does anyone have any instructions to make a diagnostic tool for the ABS on a 1995 300Tdi discovery? Haynes maual just says that if the ABS warning light is on take it to the dealer (yeh right). The workshop manual is a little more helpful in that it tells you where the diagnostic plug is. Presumably this plug just sends out simple electronic codes (e.g. voltages on certain pins) to indicate what the problem is. Surely someone has built something to read these codes already, or knows of a similarly DIY solution. :D
jnoshea:
Oh, and before Andrew says the Haynes manual has instructions to make a test plug...mine doesn't so if you have a copy that does, please copy the instructions for me [-o<
Sharpshooter:
--- Quote from: "jnoshea" ---Does anyone have any instructions to make a diagnostic tool for the ABS on a 1995 300Tdi discovery? Haynes maual just says that if the ABS warning light is on take it to the dealer (yeh right). The workshop manual is a little more helpful in that it tells you where the diagnostic plug is. Presumably this plug just sends out simple electronic codes (e.g. voltages on certain pins) to indicate what the problem is. Surely someone has built something to read these codes already, or knows of a similarly DIY solution. :D
--- End quote ---
Firstly, why is the light on??
I would find an independant garage with the facilities. Thay are cropping up all over the place now. I doubt youll find instructions on how to make one. If it were that simple, everyone would have one. :D
jnoshea:
--- Quote from: "sharpshooter" ---
--- Quote from: "jnoshea" ---Does anyone have any instructions to make a diagnostic tool for the ABS on a 1995 300Tdi discovery? Haynes maual just says that if the ABS warning light is on take it to the dealer (yeh right). The workshop manual is a little more helpful in that it tells you where the diagnostic plug is. Presumably this plug just sends out simple electronic codes (e.g. voltages on certain pins) to indicate what the problem is. Surely someone has built something to read these codes already, or knows of a similarly DIY solution. :D
--- End quote ---
Firstly, why is the light on??
I would find an independant garage with the facilities. Thay are cropping up all over the place now. I doubt youll find instructions on how to make one. If it were that simple, everyone would have one. :D
--- End quote ---
Light came on after a trip to Langdale Quest. The ABS system as a whole is not that complicated. The self-test performed by the ABS system on startup will have stored a code which identifies the faulty component or connection. This (probably simple) code should be readable from the diagnostic plug. Probably just a sensor plug loose or mud lodged somewhere, but it would be nice to know where to start looking.
Range Rover Blues:
The Haynes for the Range Rover has it in, albeit in the suppliment (thicker than the rest of the manual) but I wouldn't guarantee that it's the same ABS unit, just a good chance. If you can identify the plug next to the ABS processor then you need to find a plug on a scrapper that fits it. Chances are it's going to have a loop from the loom to the other side of the plug, so by removing the blank you break one connection, if this helps to identify it.
Navigation
[0] Message Index
[#] Next page
Go to full version