Originally Posted by JFP in PA

Ok Troops, here we go: Without the use of a Nissan Consult II or III, it is still possible to diagnose and ABS problem. It is one Hell of alot easier with the Consult because the ABS system is "protected code", meaning an OBD II scanner cannot access or reset it, but you can obtain the code and clear it by breifly driving the car over 20 MPH, then parking it and turning the ingnition off. You then attach a jumper wire from the Consult data link connector #4 (beside the fuse panel) to a suitable ground. After connecting the ground, turn the ignition to on (DO NOT TOUCH THE BRAKE PEDAL DURING THIS PROCEEDURE), and after 3 seconds the ABS MIL is start to blink out the malfuction code. Long blinks are "10's" and short blinks are "1's"; so three long blinks followed by two short ones is a code 32. The first code you will see will be a "12" which is the "self diagnostic start code" indicating that the process has begun. There may be more than one code as there are over 25 possible malfuction codes, starting (for unknown reasons) with the number 12 "start code". Once you have the code number(s), they can be cross referenced in a FSM for the correct diagnostic procedure to correct the fault.

After fixing the fault, the codes can be erased by starting the self diagnostic process above, but disconnect the ground jumper three or more times for a period of one second each within a 12.5 second time frame (no, I am not making this up). You will know that you have triggered the erase mode as the ABS light will stay on for a bit and then go off on its own.

I told you the Consult was easier...........................