I have a 1993 Buick Regal Custom with a 3.8 with Vin L.
The cruise is not working, using my OTC 4000 with the pathfinder cartridge. I read the trouble codes and they were 61,62 & 65. I checked the wiring from the PCM to the cruise control servo, no grounds or broken wires' By jumpering the servo I can get it to work. I checked the wiring and voltages on the cruise brake switch this all checked out. There were no fuses blown and by using my OTC 4000 I can see that the multi fuction switch is working proper. I have also replace the VSS just for GP.
It is my understanding that the PCM on this car with sn L controls the cruise instead of using a cruise control module.
Is there anyway of checking this portion of the PCM ?, or am I looking in the wrong direction.Optional Information: 1993 Buick Regal Custom 3.8 Already Tried: The list is included in my e-mail

Edited by Customer (name blocked for privacy) on February 12 2006 at 12:28 PM