Known problems with china clones of ELM327

Discussion about adapters and connections - usage, problems, solutions
SteveE
Posts: 2
Joined: Sun Apr 23, 2017 5:57 am
Vehicle: C-Max 1.6 TDCi 115PS 2012

Re: Known problems with china clones of ELM327

Post by SteveE » Sun Jul 23, 2017 11:45 am

I have recently purchased a Wifi ELM327 from China claiming to have a 25k80 chip (usually found in the good clones).
Unfortunately Forscan reports this as another bad clone v1.5.
Upon disassembly of the device, i can confirm it does indeed have a PIC18F25K80 device however, I have noticed some differences in the wiring and it has a 16mhz timing crystal instead of the usual 4mhz.
So I am assuming that this is a custom firmware loaded onto a 25k80 purely to intentionally mislead buyers that are looking for the original good clone 25k80.
As usual the Chinese seller is uncooperative and claims there is nothing wrong with the device and not fake in any way.
To prove my case I was looking at testing it with AT commands, however all of the commands at the start of this thread and some others I have found on the internet all return an OK response.
The Android app ELM327 identifier returns the same results as a known good ELM327 with 25k80.
Does anyone know what Forscan is looking for when it is detecting a bad clone and how I can reproduce this outside of Forscan? (The seller does not accept a screenshot from Forscan as proof).

abdelamjid
Posts: 2
Joined: Thu Mar 16, 2017 3:55 pm
Vehicle: ford escort

Re: Known problems with china clones of ELM327

Post by abdelamjid » Sun Jul 23, 2017 7:46 pm

hello to all thank you for your sharing
i have an ELM 327 1.5 not modified work with forscan or not
best regards

Matiq
Posts: 1
Joined: Wed Aug 16, 2017 8:46 pm
Vehicle: Ford Focus Mk1 1.8 Zetec 2001

Re: Known problems with china clones of ELM327

Post by Matiq » Thu Aug 17, 2017 1:40 pm

Hi, i bought ELM327 v1.5a USB from China and it's clone i think... i have problem to connect with Ford Focus Mk1, 1.8 Zetec Engine. I make test that i find in this thread and this is resault:
https://zapodaj.net/71a9e8aac7b38.jpg.html

Many faults but J1850 succes so why i can't connect to vehicle by FORSCAN ?? When i click connect i have error that "Turn ignition ON". I connect to car by ScanTool but only sensor are visible not ECU.

BruceM45
Posts: 1
Joined: Fri Jan 19, 2018 10:25 pm
Vehicle: F150, 3.5, 2018

Re: Known problems with china clones of ELM327

Post by BruceM45 » Sun Jan 28, 2018 12:34 am

I purchased an inexpensive ELM327 with the hs/ms switch.
When FORSCAN requested that I switch from hs to ms the scanner would not bring up the additional codes.
I needed to flash my trailer brake controller so I needed to see the IPC module.
By experimenting I found that if I switched the ignition back to the accessory position and then back to on the ms codes would load.
Strange huh?

ak75
Posts: 2
Joined: Sun Feb 04, 2018 2:11 pm
Vehicle: Ford Focus II

Re: Known problems with china clones of ELM327

Post by ak75 » Thu Mar 01, 2018 8:50 am

BruceM45 wrote:I purchased an inexpensive ELM327 with the hs/ms switch.
When FORSCAN requested that I switch from hs to ms the scanner would not bring up the additional codes.
Same here, with my 10$ clone from ebay.
Fortunately adding a new ignition key worked anyway.

I run the ELM327 tester
Maca wrote:I wrote a ELM327 tester that cycles through most of the commands to see what works.
There are some commands that are not tested but should give a good indication on what commands are available.
Although it might be fine (perhaps someone with more experience than I can answer), please do not run while attached to a car. This means that only certain USB connected devices should be tested for now.

Youtube Video of the software working -> https://youtu.be/ADl7YvnIY-I
ELM327 Tester download link -> https://www.dropbox.com/sh/t6jdm6b27yrz ... LGb4a?dl=0
result:
Image

what does this mean? :?:

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