The Advantage of a Bidirectional Scan Tool
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- čas přidán 29. 09. 2023
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A good scan tool is a must, in fact TWO different scan tools are necessary, in my opinion, for those times when one brand has trouble with a specific make or model.
if not more is needed, especially OEM Scantools should also be part of the arsenals too
Launch can do what most pro scan tools combined, why? Because they can do some programming as well. Something that my Verus Pro is unable to do, such as adding keys and such.
You can have 20 scan tool..but the scan tool between your ears don't work its useless...imo
Even at the dealership I have an autel for the days the oe scan tool has bad sw or some other issue.
LOL. We would get along very well. Don't tell my wife. She'll take it out on the SnapOn guy.
I was taught at a young age to always break a circuit down to at least mid point or easiest test point to figure out which side issue is on! Paul you seem to be a good teacher!
5 minutes diagnostic 14 jeep cherokee blower motor & motor module with snapon scanner .thank you SD.
PCM STRATEGY should be added to the "inputs"! I had a Ford with a misfire that would not turn on the AC, even though the scanner showed the AC was commanded on by the PCM. (the boss wanted the AC fixed first) Long story short....The PCM was replaced for a bad coil driver (misfire) , and the AC now functioned. SO, on a FORD, a CURRENT code can prohibit AC clutch "command"....sometimes the scanner lies ;-)
Best teacher out there
thank you... right click always with you....from Argentina.
Absolutely! The AC in my 2015 Ram 2500 was intermittently cutting out. Connected the scan tool and found the hi-side pressure switch was telling the PCM the pressure was 1,600 PSI. Connected my refrigerant gauge set, and the real pressure was 160. According to the tech data, the PCM will shut the compressor off when the hi-side pressure reaches 450 PSI. 15 minutes and $33.00 later, the problem was solved. And since Ram uses a schrader on the high side switch ... no evacuation and recharge ... simply unscrew the old switch and install the new one.
Brilliant Paul....Simply brilliant...Thank you my friend.
Paul just demonstrating the power of the nickname...imagine if they had called him "batman-danner"...he'd be a crime fighting billionaire 🦇
Thanks Paul for another great explanation
Great video Paul as always.
Great video
👍 another valuable lesson
Its a game changer for the Pro n Diyer.
Excellent demonstration on why you should buy a multi-scan tool with bi-directional controls. Yes, they cost more, but in the long run they earn you money and more importantly save you TIME during a service diagnosis.
Yep!❤
Nice!
My son has been having problems with his Jeep, problems with his check engine light, battery light and his transmission light coming on. He so far owes around $3000.00 at the Jeep dealer. They say his computer was blown, replaced it and now the replacement is blown. They say because of the UAW talks they can't get the parts to repair it so they gave him a loaner car in the meantime. This got me interested again in scan tools and I saw this video. Maybe you should name your new edited video series, Ask Scanner Danner.
Did you check the alternator rectifier? I learned from S.D. that a bad rectifier can cause all sorts of electrical havoc- l replaced my alternator and my non-shifting A.T. transmission was fixed. I also had various dashboard lights coming on in addition to the tranny problem. Those lights are now back to normal.
I alwqys use my scan tool to diagnose ac,door locks,lights,power windows etc.
Cool
I'm always wondering what is a good and affordable bi-directional tool for the home user. I completely understand the advantage.
Power probe
@deeznuts 😂 you're going to command a computer driver to turn on with your power probe?
@@ScannerDanner Of course it can’t command a computer, I meant as a cheaper alternative than buying a scanner, because it can still be very handy to command actuators and test circuits etc
@@deeznutz3494 power probe should 100% be in the toolbox...but it's not the same as a scanner ...they're different tools. I get what you're saying but a little context is needed.
@@ScannerDanner You're going to attract subscribers with a comment like that. 😂
❤❤❤
Hey Paul ... you from Boston? What's a rad-de-ey-ter? Love you brother!
🤣 Pittsburgh Pa
@glendekoker3682
I'm getting 27C6 not present DME: Oxygen sensor, adaptation, trim control, bank 1 and 27C8 not present DME: fuel pressure/ model comparison. Mostly get first code just started for week now fuel code came once. Any help? BMW M5 2006 I have an Autel 908 scanner
Paul, does the ECM have a DIAG circuit controlled by the SCANNER and then a normal LOGIC CIRCUIT, input portion that can be bad within the ECM that can be bad? The internal Logic side bad, BiDirectional side OK, any kind of explanation is welcome, if possible, thanks.
Is this a hypothetical question?
No SIR, if you know of a factual answer, it would be nice to hear, I have run into a few problems that a bidirectional test will pass, all the inputs are available, but the ECM input logic is bad internally, semi rare but gets a guy thinking.@@ScannerDanner
@@DuaneDonaldsonshare one of your cases with me please as I'm not sure I've ever seen that.
Paul, i saw your recommendation in the comments for a DIY bi-directional, the Topdon Phoenix Lite 2 BUT among the positives on Amazon Canada was this quote from a kevin scott reviewed May 25, 2023: "Am really disappointed with the tool as regard to European vehicles. My main reason purchased this scanner is the big advertisement on European vehicles. I have the tool for a few months now and still unable to get it to perform actuation test on vw or audi vehicles engine components like activate a coolant fan, purge valve and other. The scanner do work okay with other non European vehicles with is a bit strange as company advertisement focused a lot on European vehicles. The guy from customer support, Andre did try is best but to no success. And not a lot of support available from outside of China. Tool work great otherwise but most of the vehicle I work on are European vehicles. And now stuck with it as the 3 months already run out." I wonder if others have the same issue? It got many great reviews otherwise.
So you're looking specifically for Euro coverage? I've not used my Phoenix on anything Euro yet, so I can't comment on that.
Jump over @SuperMarioDiagnostics channel and ask him what aftermarket scan tool he'd recommend specifically for VW-Audi
I'm thinking the VAG-com
@@ScannerDanner Thanks for taking the time to reply, Paul. No i was not actually looking for myself, i just wanted to bring it to the attention for someone who may have been looking for Euro coverage and that the person was not satisfied with his purchase. It's so great to see a Channel like yours and someone who takes the time to read comments and reply; so many don't.
I was waiting on the Blower Motor input 😔
Blower motor is a separate output. You can also command a blower motor on, on some models
This is the difference between an automotive technician and parts changing grease monkey 🐵.
In before the alphabet groups say you can’t say “bi”
😂😂😂😂 alphabet group that's great lol.
😂👍
I'm as bi as his scanner. Ain't no nevermind to me.
Don't say that. Instead say you force the output on. That's what they say in the industrial PLC world of machine control.
No offence, but I think this is a poor example of how bi-directional controls are an ADVANTAGE. If pressures are good, yet the clutch isn’t engaging, power to the clutch coil is the bottom line make or break, whether or not the clutch engages (along with clutch air gap), so why would you “leave your test light in your toolbox” and start your diagnosis by actuating the clutch coil with the scanner? Technically, testing for power at the coil is where you should start your diagnosis and work your way from there, not starting from the other end of the flow chart
To each his own, this was one example and is relevant way beyond an AC clutch!
I'll also add, the AC compressor clutch wiring is not always easily accessible. So in your example, you need to rack the car, put it up in the air, take the tire and inner fender off (maybe) to gain access to the clutch wiring and you think that's better than starting with the scan tool?
@ddeznutz3494, I notice this is your second trolling comment, I tried to check out one of your vids to see a better way to do things but couldn't find any content of yours, hmm 🤔 weird.
@@ScannerDanner In this case, as a first step, I don’t care what this actuator test tells me, I want to know what’s going on when the system should be normally operating. It’s not the end of the world though. I just don’t think your test is the best place to start because it also leaves you at a fork in the road, where you could end up taking unnecessary steps if you take the wrong path from there on, and in some cases the results may not particularly lead you to a solid next step. It’s like you’re starting at the middle of the flowchart and hoping you take the right path. I’d rather start at a point that can only lead me in one direction, and the results of each test drives the next test. I don’t know about you, but I see very, very few inoperative compressors caused by a bad input, so naturally I’ll start by checking the load side first, and in most of the time this is where the problem lies
@@seanshute9284 who says I need to post videos in order to offer my opinions? If your little feelings can’t take it, stay out of the comments!