ISUZU IDLER ARM

ECM Wire Access

Here's the cover where it sits on the left side of the kick panel under the dash.
then stick something behind the plastic to gently pry it out a little to see what you have behind it....and pull gently toward the center console until you feel the clips (2) click and release.
...just pull back the weather strip; it's got a metal center piece that holds it on the pinch welds.
Fish around and find these two wire ends; they are usually heat-shrinked together to keep them paired for easy identification.

Temp Tap E4OD

Here's the complete tap installed.