Re: Service light on 2015 RT
Also...if you plan on trying the MotoScan route you can verify the health of the scanner and it’ authenticity with the free Android App “ELM327 Identifier” (from Wiki):
The ELM327 is a PIC microcontroller that has been customized with ELM Electronics' proprietary code that implements the testing protocols. When ELM Electronics sold version 1.0 of its ELM327, it did not enable the copy protection feature of the PIC microcontroller. Consequently, anyone could buy a genuine ELM327, and read ELM's proprietary binary microcontroller software using a device programmer. With this software, pirates could trivially produce ELM327 clones by purchasing the same microcontroller chips and programming them with the copied code.ELM327 clones were widely sold in devices claiming to contain an ELM327 device, and problems have been reported with the clones.The problems reflect bugs that were present in ELM's version 1.0 microcode; those making the clones may continue to sell the old version.
Although these pirate clones may contain the ELM327 v1.0 code, they may falsely report the version number as the current version provided by the genuine ELM327, and in some cases report an as-yet non-existent version.Released software versions for the ELM327 are 1.0, 1.3a, 1.4b, 2.1 and 2.2 only. The actual function of these pirate clones is nonetheless limited to the function of the original ELM327 v1.0, with inherent deficiencies.
Most of the clones are reporting [ELM327 v1.5], despite the fact that Elm Electronics does not have a version 1.5.
We note that a free Android app "ELM327 Identifier" tests 103 different AT codes and uses this information to determine which version of the ELM327 chip is actually present (or is being emulated by a pirate chip). Most of the pirated adapters that claim to be "v.1.5" or "v.2.1" actually fail most of the AT codes beyond v.1.4 and will not execute codes characteristic of ELM327 v.1.4b, 2.0, 2.1 or 2.2. Further, many of the pirated clone adapters do not even have OBDII port pins 2 and 10 connected, rendering them incapable of connecting to the ECU of many Ford and GM vehicles using the SAE J1850-PWM or -VPW protocols.
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