BQ78350: Failed to estabilish connection between BMS and Arduino Uno Board

Hi everyone, 

I have been working with this BMS for two months now, but I can't even get the connection between the BMS system and any MCU. I previously tried to establish the communication using an STM32F407 board without any result. I used the function HAL_isDeviceReady() to check the address of the BMS (which should be 0x16/0x17 according to the datasheet), but the board didn't recognise any of address.

I gave up on that and I started using the Arduino Uno board, thinking that it would be much easier. I was wrong. I still have the same problem. I created a code to check whether the board sees that any slave address is connected to any of the possible 128 addresses but the board doesn't recognise anything. Actually as soon as I connect the BMS data line the Serial port freezes and only prints a few characters. The Arduino code that I am using is shown below.

Can someone help please!!

P.S. I must mention that both the HAL_isDeviceReady() and the Arduino code that I wrote work with any other I2C device that I have tested.

#include <Wire.h>
//#include <inttypes.h>
//#ifdefined(ARDUINO) && ARDUINO >= 100

//#include "Arduino.h"
/*
#define printIIC(args) Wire.write(args)
inline size_t CheckAddress::write(uint8_t value) {
send(value, Rs);
return 1;
}*/
 
void setup()
{ 
  Serial.begin(2000000);
  Wire.begin();
 
 
  Serial.println("\nI2C Scanner");
  //while (!Serial);             // Leonardo: wait for serial monitor
  //delay(1000);
}
 
 
void loop()
{
  byte error, address;
  int nDevices;
 
  Serial.println("Scanning...");
 
  nDevices = 0;
  for(address = 0; address < 127; address++ )
  {
    Serial.print("Scanninng address");
    Serial.println(address);
    // The i2c_scanner uses the return value of
    // the Write.endTransmisstion to see if
    // a device did acknowledge to the address.
    Wire.beginTransmission(address);
    error = Wire.endTransmission();
 
    if (error == 0)
    {
      Serial.print("I2C device found at address 0x");
      if (address<16)
        Serial.print("0");
      Serial.print(address,HEX);
      Serial.println("  !");
 
      nDevices++;
    }
    else if (error==4)
    {
      Serial.print("Unknown error at address 0x");
      if (address<16)
        Serial.print("0");
      Serial.println(address,HEX);
    }   
  }
  if (nDevices == 0)
    Serial.println("No I2C devices found\n");
  else
    Serial.println("done\n");
 
  delay(5000);          // wait 5 seconds for next scan
}