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Thanks. It is OBD-II but I want to know the hardware protocol that is being used - is it ISO9141 or KWP. Both operate at 10.4 kbaud but have different bus init and bit structure for the commands.
Just saw your discussion on forum about Santro Protocol.
I own Santro Club in Pakistan(in other countries its sold with name Santro Atos or Santro Xing)
I have used aftermarket standard ELM327 scanner device to be able to diagnose my car faults. Unfortunately, device did not recognized my car.
I am in doubt what could be the reason. Is it not OBD2 Compliant?
Under the dash, i found 16 pin 1962 OBD2 connector utilized only 6 pins.
In my car pins under use are Pin# 4,5,7,8,12, 16.
What I came to know that
Pin# 4 & 5 belong to chassis and signal ground ---- Verified
Pin# 7 belong to ISO9141-2 K Line protocol ---- Not Verified
Pin 8 & 12 may be discretionary --- Not Verified
Pin 16 is Unswitched 12 V supply --- Verified
Few other countries Santro Models utilize pin # 15. But in my case, Pin 15 wire is not present in OBD2 Connector.
I have built myself OBD2 to RS232 cable connector using MAX232 . The circuit is available on website : obd protocol_Automation-Drive.
But I am not sure which software can recognize my car?
Please help me in this regard.
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