Could be that IP OS filter, you don't need it.
Do you know if you have an OBD1 or OBD2 system?
Do you know where the PCM (computer) is?
Should be inside the cab.
Does it have PINK & BLUE or BROWN & BLUE connectors?
If your transmission is in working order it will have reverse and 2nd gear
when you unplug the main trans electrical connector on the drivers side.
Either year PCM will control the 4L80, there are no differences as far as
that is concerned.
The stud goes in the first hole.
The bracket goes on the 2nd hole with a bolt.
That is how GM did it. I'm sure there must have been a purpose
for the stud but I have not seen it.
You will notice the bracket fits snug in the pan rail.
That keeps it from twisting when you tighten the bolt.
The resistor bypass only replaces the signal the passlock module wants.
Passlock is still working.
The SECURITY lamp will normally go out along with the WTS lamp.
That should not cause any additional wait time.
AK is correct, you can have the security turned off by a PCM reprogram.
A 1997 PCM...
That is just a bad drawing, the shield bolts to the starter brace bolt or stud on the block.
The difference with that new shield in post #37 is the rear of the shield bolts directly to the stud that
holds the transmission to the block. I don't remember seeing one like that but it is well...
Male conn is 12129155 term is 12084586
FM conn is 12129081 term is 12015858
The only reason for that conn. is so the main harness can be installed and removed without cutting any wires.
Solder it together and forget it.
1996 and up (obd2) do not need the LP/OPS relay mod.
The PCM controls the LP with the LP relay and the OPS is “redundant” per GM.
With the key off and the LP running does unplugging the OPS shut it off?