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Re: Warning: Defective Konnwei KW-902 on the market

Posted: Wed Nov 15, 2017 8:38 pm
by Altontoth
I received a KW902 in the mail today (took about a month to arrive), got super excited, plugged it in, turned the car on, and got the scary looking T/M Error. Panicked, shut the car down, pulled the reader and turned the car back on and everything is A-OK. Took the reader to my 2001 Explorer and plugged it in and it connected fine, reported back protocols ok, etc. Didn't try actually USING it, but came looking on the Leaf forum and found this thread.

I've metered it out and can report that as of Oct/Nov 2017, Amazon STILL has the 20ohm units for sale (here: https://www.amazon.ca/gp/product/B06WPB ... UTF8&psc=1). I have a message in to the seller indicating that I'll keep the unit but I want a partial refund. I've been burned by two other readers (one wasn't even soldered to the connector), and I was hoping that I had FINALLY found one that actually worked (there was a recommendation on here somewhere for this particular unit). ALL I have to do is remove that one SMD resistor and it will work fine? Should I replace it with the recommended 120ohm (I have a decent electronics stash)? I see now in the reviews that someone has posted about this error. I have NO idea how I managed to miss it. Oi.... I'm glad I didn't fry the car. It's so frustrating that you can't just buy a basic reader online....I mean, I could buy a pre-programmed ELM327 chip legitimately for $8.50 and build my own dongle, but to buy one is ridiculous money.

Edit: Seller basically told me to pound sand, that there was nothing wrong with it. I gave the product a bad review, and modified it. Runs great in my Explorer. Looking forward to using it in the Leaf.

Re: Warning: Defective Konnwei KW-902 on the market

Posted: Tue Dec 05, 2017 2:14 pm
by dibun
Turbo3 wrote:
AdamFist wrote:This thread was helpful and timely since I received my Konnwei KW902 yesterday. I'm returning it to Amazon. In the meantime, does anyone have a recommendation for an alternative ODB2 scanner that works?

Thanks,
Adam
The currently available test version of LeafSpy Pro supports the newer Bluetooth 4.x LE as will the next official releases of all versions of LeafSpy which I hope to start rolling out within the week.

There are two supported Bluetooth 4.x LE OBDII adapters. The LELink and the PLX Kiwi 3 with the LELink from Amazon being the cheaper of the two. The LELink is what I use and works with the iOS version of LeafSpy and will work with the next release of the Android versions of LeafSpy.

Bluetooth 4.x LE being a low power adapter will result in less drain from your 12v battery when the Leaf is off. There is also no pairing required.

Anyone with the Android version of LeafSpy Pro can try the latest test version using this link.
https://play.google.com/apps/testing/co ... af_Spy_Pro
Does LELink and the PLX Kiwi 3 works on IOS and Android? Does ScanTool OBDLink MX work with Leafspy? as their site says it might not work with Hybrid and EV.

Re: Warning: Defective Konnwei KW-902 on the market

Posted: Sat Dec 09, 2017 12:36 pm
by Turbo3
dibun wrote:
Turbo3 wrote:
AdamFist wrote:This thread was helpful and timely since I received my Konnwei KW902 yesterday. I'm returning it to Amazon. In the meantime, does anyone have a recommendation for an alternative ODB2 scanner that works?

Thanks,
Adam
The currently available test version of LeafSpy Pro supports the newer Bluetooth 4.x LE as will the next official releases of all versions of LeafSpy which I hope to start rolling out within the week.

There are two supported Bluetooth 4.x LE OBDII adapters. The LELink and the PLX Kiwi 3 with the LELink from Amazon being the cheaper of the two. The LELink is what I use and works with the iOS version of LeafSpy and will work with the next release of the Android versions of LeafSpy.

Bluetooth 4.x LE being a low power adapter will result in less drain from your 12v battery when the Leaf is off. There is also no pairing required.

Anyone with the Android version of LeafSpy Pro can try the latest test version using this link.
https://play.google.com/apps/testing/co ... af_Spy_Pro
Does LELink and the PLX Kiwi 3 works on IOS and Android? Does ScanTool OBDLink MX work with Leafspy? as their site says it might not work with Hybrid and EV.
Yes to all.

Re: Warning: Defective Konnwei KW-902 on the market

Posted: Wed Dec 27, 2017 12:43 pm
by evansindy
Yes! I bought a KW-902 from Amazon shipped just a few days ago and the resistance measured 20 ohms.

Re: Warning: Defective Konnwei KW-902 on the market

Posted: Thu Dec 28, 2017 11:07 am
by Turbo3
evansindy wrote:Yes! I bought a KW-902 from Amazon shipped just a few days ago and the resistance measured 20 ohms.
Can you post a link to the seller on Amazon?

Re: Warning: Defective Konnwei KW-902 on the market

Posted: Fri Dec 29, 2017 7:56 pm
by Altontoth
Here's the one I bought:

https://www.amazon.ca/gp/product/B06WPB ... UTF8&psc=1

Works GREAT, but ONLY after I removed that one resistor as was suggested by folks.

Re: Warning: Defective Konnwei KW-902 on the market

Posted: Fri May 14, 2021 12:59 pm
by Canadian
Hello,
I'm in the process of finding a used Nissan Leaf for my daughter. I trust car salesperson about as much as a pit full of snakes. I see that some Kw-902 can cause problems with the Leaf. I was wondering how you can tell if a Leaf has been damaged by being scanned by the bad OBD2 scanner? I also ordered 2 (2 min order) ELM 327 KW902 wifi directly through Albaba which was recommended by Konnwie through there website messaging. However as you see I made the mistake of ordering the wifi version and had a few questions regarding the Leaf Pro and which would be the one that it would work best with being it's the wife model. I will be receiving the ELM327 any day and will still check to see if it reads 120ohm.

Re: Warning: Defective Konnwei KW-902 on the market

Posted: Fri May 14, 2021 6:40 pm
by Altontoth
When I tried to use it on my car it gave me a 'CanBus' error, right on the dash display. I shut the car off, unplugged the scanner, and it booted right back up again normally. I'm not sure if you can actually damage a vehicle using these. The OBD port is actually fused on most vehicles, and I have blown a fuse on the port before which made readers non-functional on it until I changed the fuse.

Re: Warning: Defective Konnwei KW-902 on the market

Posted: Fri May 14, 2021 7:17 pm
by cwerdna
I wouldn't waste time ordering KW-902 dongles when there are plenty of other compatible ones.

Re: Warning: Defective Konnwei KW-902 on the market

Posted: Fri May 14, 2021 7:20 pm
by LeftieBiker
cwerdna wrote:
Fri May 14, 2021 7:17 pm
I wouldn't waste time ordering KW-902 dongles when there are plenty of other compatible ones.
Like the inexpensive, reliable one in my signature.