error code P0500(Vehicle Speed Sensor) - 1996 Nissan Maxima

I have 1996 Nissan Maxima, Recently getting problem with P0500 Vehicle Speed Sensor. 1st time my mechanic got in his meter codes are P0500 and P0600. and he changed my Vehicle speed sensor at that time. After I drove my car for a 3 days and again I got check engine light. My mechanic said again P0500 came on meter.He said he will try to solve the problem

Please Auto Professionals help me on this.

When he was checked my car, The meter gave reading 1700RPM and 0 MPH

Thanks
Tim

Id check the integrity of the plug and harness for water or corrosion

I've had this problem in the past. The two cars that I repaired required the replacement of the speedometer head. One of the vehicles was a 96 Maxima and the other was a 97 Maxima. I found that the signal from the speed sensor to the speedometer was O.K. but the signal from the speedometer to the computer was bad and caused the PO500 code. You may have the same problem. Good Luck.

I also have a 1996 Maxima SE and have been having the same problem. I had the speed sensor replaced and within two days, light back on. The shop at the dealer (Jones in Bel Air, MD) refused to clear the code and wanted me to replace the speedometer for $650 (they don't print the error code on the receipt). I took it somewhere else and the mechanic told me it was the speed sensor again but he did clear the code for me so I could see if the light would come back on. I really don't think it's the speed sensor because mine has been replaced twice in the last two years (I forgot I had it replaced slightly over a year ago - code P0500 found). I also don't believe it's the speedometer. I started looking around and found this info:

http://autorepair.about.com/library/faqs/bl035e.htm

If my light comes on again, I will ask the mechanic (not at the dealer) to check these wires and replace if possible. I'm not handy with cars so can't do it myself. Other than this annoying problem, my car runs great!

I just returned from the California Test Only station with the exact same 0500 code. I now need to get it repaired and then retested. My speedometer has also been not working intermittently for the past 5 years. It looks like it can be any combination of speed sensor, harness and speedometer head. Yikes.

Well the link gives you apretty good place to start. good luck.