I am helping my neigbour fixing his 95 altima automatic. The problem it has is, the speedometer sometimes works sometimes doesn't. When it's not working, the engine light will come on and it has little hesitation problem. I am thinking it's the VSS going out. I want to make sure my assumption is correct. So, I want to run a diagnostic code check before changing out the VSS. I opened up the kick panel on the passenger side, I found the ECU doesn't have the diagnostic screw.My question is how do you guys get the trouble code out of the car? I don't have the hand held reader.

Also, where is exactly the VSS located? I know it should be on the tranny somewhere.

Thanks in advance