A very precise and detailed explanation, thank you for deciding to share your experience. I am happy that there is still someone who also thinks about beginners. Thank you very much
i have a question. my car ONLY when the weather is freezing. on the initial start up in morning . the car does not high idle . it idle at 1000 aka it shakes . it suppose to idle at 1800 or more. the car has an electronic TB no IAC. i checked the coolant temp sensor value in morning it matches with the air temp sensor .what could be the problem in your opinion
Amazing! Another great video for beginners and advanced technicians! Keep up the great work! I may have to enroll to your classes for a refreshment soon!
Great video please keep them coming. Old school technician . Can you do some on pull up and pull down circuits and the difference in ground side switched and positive side switch. Little lost. Thanks
This is a great job here. Please, I need your opinion on a BMW i'm working on. The issue is, at high temp, even above 120°C, the fan will not start(that is abnormal). Once you unplug the ects, the fan will come up(normal, showing an open circuit). The confusing part is that, there is no DTC and all measurements are ok. What is your take on this?
@@Jemimah-b1y I would do a voltage drop test from the sensor signal to DME and from the sensor ground to a known good ground. It might have unwanted resistance on the circuit.
@MRDIAGNOSTECH Thanks, i've done all of these tests. the resistance on the signal wire is around 42ohms and sensor ground 18ohms, which I feel is a normal wire resistance. I began to suspect the DME, i changed the DME, but it was the same(fan not coming on). I tried to on the AC to observe if there would be a difference, NO! Just thinking, can a bad thermostat sensor be a cause?
@MRDIAGNOSTECH woke up to see your response. Your responses are really insightful and helpful. Yeah, voltage drop btw sensor signal and Dme is 0.098v. with the ects unplugged, a measure btw the sensor signal wire and a good ground should give a 4.9v - 5.1v and a measure btw sensor ground and bat+ should give battery voltage(BMW manual) and that is what i'm getting. With the sensor plugged, i measure btw sensor signal(back probed), and ground gives 2.6v after an overnight sleep test. Pls where am i getting it wrong?
A very precise and detailed explanation, thank you for deciding to share your experience. I am happy that there is still someone who also thinks about beginners. Thank you very much
You're very welcome!
@@MRDIAGNOSTECH yes good explanation.
i have a question. my car ONLY when the weather is freezing. on the initial start up in morning . the car does not high idle . it idle at 1000 aka it shakes . it suppose to idle at 1800 or more. the car has an electronic TB no IAC. i checked the coolant temp sensor value in morning it matches with the air temp sensor .what could be the problem in your opinion
Very good teaching 👍🏻
I love this lesson.please can you do one video for 3 wire sensors.
Amazing! Another great video for beginners and advanced technicians! Keep up the great work! I may have to enroll to your classes for a refreshment soon!
You have a hell of a way of teaching. Thank you and keep up the good work
What a great explanation. Thanks for sharing.
thank you!!! great Job!!!
Thank you for sharing your knowledge
Good refresher course 👍🏽
Yes, thanks
The best explanation I've seen on TH-cam. Thank you.
Great video, many thanks for posting
Very informative Video. Keep it Up ❤❤🎉
Great job thank you for the help
Thanks for explanation, well done
Great information. Thank you 🙏🙏
Thank you sir very very good explanation
Great video please keep them coming. Old school technician . Can you do some on pull up and pull down circuits and the difference in ground side switched and positive side switch. Little lost. Thanks
Brilliant video.
Could you do one on the camshaft sensor.
One of the best explanations Greetings from Germany😊
Thanks! 😃
Useful
Very good job! Why doesn't the resistor inside the PCM create a voltage drop? Why, after that resistance, is the voltage still 5 volts?
When it is unplugged, the circuit is incomplete, and voltage is not used.
Thanks! 🙏
This is a great job here. Please, I need your opinion on a BMW i'm working on. The issue is, at high temp, even above 120°C, the fan will not start(that is abnormal). Once you unplug the ects, the fan will come up(normal, showing an open circuit). The confusing part is that, there is no DTC and all measurements are ok. What is your take on this?
@@Jemimah-b1y I would do a voltage drop test from the sensor signal to DME and from the sensor ground to a known good ground. It might have unwanted resistance on the circuit.
@MRDIAGNOSTECH Thanks, i've done all of these tests. the resistance on the signal wire is around 42ohms and sensor ground 18ohms, which I feel is a normal wire resistance. I began to suspect the DME, i changed the DME, but it was the same(fan not coming on). I tried to on the AC to observe if there would be a difference, NO! Just thinking, can a bad thermostat sensor be a cause?
@@Jemimah-b1y voltage drop using volts, not ohms. It should not exceed 0.100V.
@MRDIAGNOSTECH woke up to see your response. Your responses are really insightful and helpful. Yeah, voltage drop btw sensor signal and Dme is 0.098v. with the ects unplugged, a measure btw the sensor signal wire and a good ground should give a 4.9v - 5.1v and a measure btw sensor ground and bat+ should give battery voltage(BMW manual) and that is what i'm getting. With the sensor plugged, i measure btw sensor signal(back probed), and ground gives 2.6v after an overnight sleep test. Pls where am i getting it wrong?
What if you are getting 5v on the signal wire as well the ground wire at point B6. How do you fix that?
Nice 👍🏼 ! 🔥 🧰
Thanks mate !
❤❤❤❤❤❤
So usually heat creates resistance which lowers voltage. Here resistance drops and so does voltage.
@@Outrunninaround. That's because this is a negative coefficient temperature sensor.
GREAT VIDEO!!