1992 GMC Sonoma Repair Question
Speeodmeter and odometer
I also cleaned plug with electrical cleaner and checked for voltage at the wire and plug.
Raise rear wheels off ground place DVOM meter on AC scale trans in neutral. Rotate tires by hand @3mph meter shloud read .5 - 1 v AC
Do I take the reading off the speed sensor? If it read good or bad what are the options?
Yes reading off seed sensor this will tell if signal is being produced
I got readings that jumped from 0 to 1.5 but had to turn the wheels at higher speed to get anything? So what does that mean?
Is there something simple that I am missing?
Find VSS buffer item F in first diagram on firewall near ECM. Check White Wire term.10 for output to speedo also check input signal from VSS
I am having a hard time finding the VSS. Is it on the engine firewall or in the cab?
Info I have firewall next to ECM
Thanks. I found it and fixed it.