99. Speedo is run through the t-case using a taco speed sensor, wired straight into the speedo.
It's an auto, though it was run through the ABS.
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Ok, it's not the speed signal then--unless somehow you cut the connection to the CC ECU when you rewired the speedo. I'd check that. That signal leaves the Combination Switch (dash module) on a green-orange wire and goes to Plug 3E Pin 8 in the Center junction box. That then gets split into five outgoing green-orange wires and the one on Pin 4 goes to the CC ECU.
Looking at my paper '99 EWD, the stalk signal switch sends FOUR different signals to the Cruise ECU.
Off Open to ground on T15 green-black of the CC ECU
On 0Ω to ground on T15 green-black of the CC ECU
RESUME/ACCEL 68Ω to ground on T3 solid green to CC ECU
SET 198Ω to ground on T3 solid green to CC ECU
CANCEL 418Ω to ground on T3 solid green to CC ECU
Yes, you can live without the stalk on/off and just use the dash one, if you short T15 to ground on the CC ECU and you really don't need CANCEL, just turn it off on the dash.
So you would need two momentary SPSTs with the appropriate resistors for SET and ACCEL. IF the stalk is the problem, that should work. HOWEVER, we really don't know what is the issue keeping the light off. The stalk should have nothing to do with it. It should come on when the dash switch is pressed, and that switch power comes straight from the GAUGE fuse. It does not go near the ABS system. CC ECU power comes from the ECU-IG fuse--likewise. The light is supposed to flash when the CC ECU reports a fatal issue, not remain off.
If I were you, I would verify 12V+ at T13 of the CC ECU when dash button is pushed (either white-red or yellow-red wire depending on TC) and 12V+ at Pin 4 yellow wire with key on. Those two should make the light go on, or at least flash, as far as I can tell.
You can check the dash bulb by applying ground to the red-black at T11 of the CC ECU.
I hope you have the V6. The four-banger is different.