O2 / Oxygen / Lambda sensor heater Diag thru Premium video

Hi all, a quick question here. Was testing the heater on an o2 sensor also like Danner did in his premium video from youtube and placed a test light in series to check but won't light it.
Problem is i got 200mV somehow constant on a 2v-5v scale on my scope (if's 2000 series Pico, so no automotive) it has some noise.
If i switch to 1V scale it looks like i got on/off control from ECU but very short off just like his waveform when adding the test light in. 
My curiosity is why that test light won't turn on at all? and yes, it's good test light  

You're going to need to provide the year make, make model and engine of whatever you are working on and show us exactly how you are setting up your equipment.

it's a motorbike, and has a narrow band 4 wire 02 sensor,
it's a kawasaki Z650 2022, for the info

strange is that on 1V scale i see some duty cycle with channel over range on the off time and on 2V scale i get a constant 200mV line

i know that the signal waveform must be on 1V scale for narrow bands not the duty cycle

Try 20v scale and see. It is a 12v circuit.

on the other wire i get 14V (Bat+) but on the second one not. also it doesn't light up my test light.
I can see small voltage for duty cycle and very short off time

i got p0130 and p0133 codes and heater resistance is 3 times manual specs, around 18ohms not 6 ohms, but i would also like to get this check 100% on point not just changing parts by codes, even tho i am 100% o2 sensor is faulty, checked the harness wires were ok
 

I would unplug the sensor connector, back probe the control and use the test light (connected to batt positive) and see if the light flashes on and off when the heater is on. Does the scanner you are using give you a PID for the heater state(ON/OFF)?


I would erase the codes to see if the module decides to turn on the heater.  If  you are concerned about a short, disconnect the sensor and the module connector and  ohm either end to ground. The meter should read OL . If you are concerned about an open, you can set the meter to ohm and put one lead on each end. Meter should show continuity. 

man, thanks, you enlighten my day remembering what i did wrong with the test light
i've put it on battery negative and that should be the reason why won't light up

i am using Texa diag tool, it's the only professional scanner on the market for bikes, it shows what bike manufacturer allows 3rd party to show. unfortunatelly bikes are not like cars and can't monitor so many parameters.
I did had a p0130 and p0133 code (p0133 it's not even listed in Kawasaki's workshop manual, just p0130 and p0132)

i did back probed on the harness side where i made my measurements and pinch wire right at the 02 sensor so check if i get 12v on it's wires everything looks ok
also did throttle snaps and brake cleaner spray and stuff o2 sensor reads mods and just like Danner says it changes in 100ms

erased the codes and will get on a test drive to see what client states turning engine light on and shutting off the engine in 1st and 2nd gear and after that will swap with a known good o2 sensor
so far while measuring on idle ECU didn;t throw a code back

Excellent, glad you figured out where you going wrong with the test light