Where to tap speed sensor signal?

[peterbaron]

Semi update:

Most likely it has two wire hall effect:
Hall Effect Sensor: outputs a square wave (voltages may vary depending on design)
Testing: DO NOT CHECK SENSOR RESISTANCE as this may damage it, due to the circuitry used in the sensor.

...unlikely
Permanent magnet, induction type sensor: This type creates an analog signal. You can check sensor resistance if you have the specification, and you won’t damage it.

Bottom line: need a scope, as popgun and others said.

I tried to go through the back door but
".. the Honda Tech dept couldn’t give us an answer.."

More will come after vacation.