Good review, I will have to look into that, it is certainly faster than busting out the wiring schematics and DVM! If you ever visit salvage yards, next time you go, take every relay and fuse you find. I do that when I make a trip, and usually spend about $5-$10 bucks and come home with 2 dozen or more relays/fuses. In any case, great review!
How do we really know the tester finds failures if you didn't test a FAILED relay? Is there a red light, a beep...? I measure ohms first, (should be 75Ω) with a digital multi-meter (DMM) across control coil pin 85 ⏚ and pin 86 +. If ohms is around 0, reverse the test leads because the relay may have a freewheeling diode to quench the back EMF from the collapsing magnetic field of the coil. If infinite ohms Ω or no continuity the coil wire is broken, i.e. open circuited. If still near 0 Ω between coil pin 85 ⏚ and pin 86 +.the solenoid windings are short circuited. In either case, with no resistance or excessive, replace the relay with a new one. If ohms good, apply negative/ground ⏚ black power to pin 85, red positive + power to pin 86 (a 9-Volt transistor battery works) and verify continuity using a test light wired in series between the Normally Open (NO) pin 30 and pin 87, or continuity with the DMM. If more than an ohm the relay power contacts are worn out from arcing. You should have infinite resistance between pins 30 & pin 87 when de-energized [power removed from pin 86 (or pin 85)]. If a 5-pin 87a is a normally closed (NC) contact to pin 30, behaving the opposite or pin 87, a normally open (NO) when not energized. Power door locks and windows use two (dual) 5-pin relays to swap plus + and minus - to the solenoid for lock and unlock and the motor for up and down in a configuration called Rest at Ground (NC pin 87a is connected to ground in both relays, and pin 87 is wired to power instead of pin 30). In Rest at Ground pin 87 of each relay is wired to the solenoid/motor. Well... after all that, if the ES 190 Relay Buddy really does detect failures, it's a huge time saver.
You just make me realy happy i love it! I already got one , now i have the power probe the hook plus this relay body im feeling confident O yeahhhh! One more like for you! My friend!
I also have a car, a 2005 Chrysler Minivan, with an intermittent electrical problem. It is exactly as you have described and all the relays test good. What did you finally determine was the problem?
Does it only test the control side of the relay? The coil. What about the load side? They should add a light to this thing that illuminates showing that the load side can illuminate the light
+Steed “Still Hunter 69” Andersen I have one here, I just never got the footage that I liked to make a review....thanks for the reminder, I will see if I can add that on the list in the near future!
+Bryan Davis I dont think so, but to be sure I would suggest shooting them an email.....as far as I know it was 4 & 5 pin relays only....otherwise the red LED lights up indicating failure (same thing happens if you select 5 pin & put a 4 pin the in tester....auto-failure).
@@RealToolReviews And why is that you are not sure? Your opinion now with more experience in the field, with or without relay buddy, would be of great help. Want to make a decision whether to order any sort of relay tester at all. From a far away country. Thank u
Авто/Мото
Good review, I will have to look into that, it is certainly faster than busting out the wiring schematics and DVM! If you ever visit salvage yards, next time you go, take every relay and fuse you find. I do that when I make a trip, and usually spend about $5-$10 bucks and come home with 2 dozen or more relays/fuses. In any case, great review!
I used to part out cars a lot, and I would save every fuse & relay from them also ;) MUCH better than having to buy one in a pinch!
That looks like a real time-saver! I wish I knew about this before I got the Lisle relay tester kits.
Great video and a great diagnostic tool for automotive technicians
Thank you, great video...going to get one..
How do we really know the tester finds failures if you didn't test a FAILED relay? Is there a red light, a beep...?
I measure ohms first, (should be 75Ω) with a digital multi-meter (DMM) across control coil pin 85 ⏚ and pin 86 +. If ohms is around 0, reverse the test leads because the relay may have a freewheeling diode to quench the back EMF from the collapsing magnetic field of the coil. If infinite ohms Ω or no continuity the coil wire is broken, i.e. open circuited. If still near 0 Ω between coil pin 85 ⏚ and pin 86 +.the solenoid windings are short circuited. In either case, with no resistance or excessive, replace the relay with a new one.
If ohms good, apply negative/ground ⏚ black power to pin 85, red positive + power to pin 86 (a 9-Volt transistor battery works) and verify continuity using a test light wired in series between the Normally Open (NO) pin 30 and pin 87, or continuity with the DMM. If more than an ohm the relay power contacts are worn out from arcing. You should have infinite resistance between pins 30 & pin 87 when de-energized [power removed from pin 86 (or pin 85)]. If a 5-pin 87a is a normally closed (NC) contact to pin 30, behaving the opposite or pin 87, a normally open (NO) when not energized.
Power door locks and windows use two (dual) 5-pin relays to swap plus + and minus - to the solenoid for lock and unlock and the motor for up and down in a configuration called Rest at Ground (NC pin 87a is connected to ground in both relays, and pin 87 is wired to power instead of pin 30). In Rest at Ground pin 87 of each relay is wired to the solenoid/motor.
Well... after all that, if the ES 190 Relay Buddy really does detect failures, it's a huge time saver.
You just make me realy happy i love it! I already got one , now i have the power probe the hook plus this relay body im feeling confident O yeahhhh! One more like for you! My friend!
jessie morales Thanks Jessie! I am glad you liked it!
Hi there,
Would it be possible if you could review the ES 230 Short Buddy? Please.
Thanks for sharing
Make a follow up video of what happened to the car, what was the issue.
Pats system. Ford security system
I also have a car, a 2005 Chrysler Minivan, with an intermittent electrical problem. It is exactly as you have described and all the relays test good. What did you finally determine was the problem?
Does it only test the control side of the relay? The coil. What about the load side? They should add a light to this thing that illuminates showing that the load side can illuminate the light
What is the minn volts needed to make this work...
Looking to get one of these soon. You mentioned making a video on the Load Pro, did you ever do one? I looked around your channel but didn't see it.
+Steed “Still Hunter 69” Andersen I have one here, I just never got the footage that I liked to make a review....thanks for the reminder, I will see if I can add that on the list in the near future!
Thanks, looking forward to it.
Load pro test leads are indispensable! I'm a heavy equipment mechanic and use loadpro w/ my dmm. The tool works!
How would you test a 70 amp relay with this tool?
The load side of those relays sometimes carries up to 40 amps there's no way that tester could measure that voltage drop
hey enjoyed the video but was wondering what was wrong with vehicle in question
The horrible Ford PATS system.....
Does it test 3 prong relays? Had an 08 maxima with a 3 pin horn relay today, don't see them too often but would like a tool to test them
+Bryan Davis I dont think so, but to be sure I would suggest shooting them an email.....as far as I know it was 4 & 5 pin relays only....otherwise the red LED lights up indicating failure (same thing happens if you select 5 pin & put a 4 pin the in tester....auto-failure).
Hi can you still use this tool with the battery in the car without taking the battery out ?
+Peter Bare Yes.....just connect it to the positive and negative terminals to power it up.
So in 2019 does the ES 190 relay buddy a thumbs up or down?
For what it is, it’s effective. Not sure I’d spend $50 again though...
@@RealToolReviews happy New Year. And thank you.
@@RealToolReviews And why is that you are not sure? Your opinion now with more experience in the field, with or without relay buddy, would be of great help. Want to make a decision whether to order any sort of relay tester at all. From a far away country. Thank u