ABS diagnostic plug.....

[Nev]

........ What is the best way to know which pins are which? I.e which letter/number is which? For bridging to read the stored codes......

[Wally]

If it is a Teves Mk11 or Mk1V, my Information shows "To Access the ABS self-diagnostic fault codes on this model requires special equipment"
   
   See "Location of ECU diagnostic plug" Post - http://www.acownersclub.co.uk/forum/topic.asp?TOPIC_ID=2828
   
   Wally

[Nev]

It is the Teves II system,
   I was reading this link: http://www.autozone.com/autozone/repairguides/GM-Bonneville-Eighty-Eight-LeSabre-1986-1999/TEVES-II-ANTI-LOCK-BRAKE-SYSTEM/System-Testing/_/P-0996b43f8038fb16
   
   Whilst it states different car models, it is the same system and it says to use a jumper wire across pins H and A, where A is the Ground presumably. But it does not show which ones are which.

[Wally]

Autodata shows
    Pin 1 = blue/black.
    Pin 2 = brown/red.
    Pin 3 = brown (this is the earth).
   
   Sorry I can't help with which is pin H or A.
   
   Wally

[Nev]

I now know which plug is the ABS diagnostic plug, and have seen a wiring diagram to know which pins to bridge/ connect to earth so as to get the flash sequence on the dash light so as to get any stored codes.  Will update with more info later........

[Nev]

I now have the codes and know what to check, send me a message if you need info  to diagnose your fault.