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MTS V4S 2021 annual reset issue.

Posted: Sun Jun 15, 2025 8:12 am
by PaulMTS_V4S
Hi JP,

I have successfully connected the Melcodiag app to my bike but when pressing the 'annual service' button the command seems to be issued but nothing happens and the light remains on.

Can you help me out on this? Thanks, Paul.



The MelcoDiag.exe.debug log file reads:

"File generated On 6/15/2025 9:09:56 AM"
"Software version 2.0.4.4"
"ELM version : ELM327 v1.4"

"Auto Detect Bike = MTS V4S"
"User Bike = MTS V4S / 2021"

"CAN Bike = "
"Ecu = "
"Hardw = """
"Softw = 5"
"OilService = NO"
"DesmoService = NO"

" vin 145A8F035A444D3141303041414D42303039363832

13 PIDS active founds

022_000000000003FC3D
023_000001FC7FC70CF4
020_0040D91068008DCB
184_7D0B8F6300000C83
188_7FFF7CEF804B4C8D
018_0002A000C40041CC
019_96096000000001CE
18C_800B7FFF80030C89
024_0000000000000117
084_1D22261226005F03
080_1D2226C045200171
100_C80205C05A000022
130_C155040101C00B64
"
"Vin = ZDM1A00AAMB009682"
"DTC = "
"565E6298"
"Bike = 8"
"lic found

lic is valid
ZDM1A00AAMB009682
***reset annual***
021001
065001006400C300

service date : 250615
service date : 250615
***reset annual***
021001
065001006400C300

service date : 250615
service date : 250615
***reset annual***
021001
065001006400C300

service date : 250615
service date : 250615
***reset annual***
021001
065001006400C300

service date : 250615
service date : 250615
***reset annual***
021001
065001006400C300

service date : 250615
service date : 250615
lic is valid
ZDM1A00AAMB009682
"
"registered"

Re: MTS V4S 2021 annual reset issue.

Posted: Sun Jun 15, 2025 6:30 pm
by jpl250rs
all looks ok ,
for the annual there may be some issues yes , the dash board requiere a protected access and the algorythm is still unknow
but the service reset shall be ok right ?

Re: MTS V4S 2021 annual reset issue.

Posted: Mon Jun 16, 2025 7:20 pm
by PaulMTS_V4S
Hi,

as listed in the log file, I tried annual reset that did not work.

You expect service reset to work. Do you mean the button 'Service Interval' that is use for the oil change interval? Will this also reset 'annual service'?

Re: MTS V4S 2021 annual reset issue.

Posted: Mon Jun 16, 2025 7:49 pm
by jpl250rs
service is oil
on certain bike it's not possible yet to reset the service date , some user deleted the lamp changing the date on the dash directly

Re: MTS V4S 2021 annual reset issue.

Posted: Thu Jun 19, 2025 7:04 pm
by PaulMTS_V4S
Hi,

I tried 'annual reset' and 'service reset', none seems to work.
I changed the date to cancel the light.

Hopefully the service can be provided in the future.