How can I get Ak8963 Address from MPU9250 - arduino

Question

I try to read the value Who I Am from AK8963 in MPU9250, if I read the values of the accelerometer and the gyroscope in other skecth I have not problems, but When I try to configure the magnetometer first I need to know if there is connection in i2c bus but, If I run i2c Scan always find 0x68-- MPU9250 address but never AK8963 Addres 0X0C, I have already configured Bypass from Int_cpf.. register Address 0x37 with 0x02 here my code always return 255 from value Who I Am from AK8963.
Here my code
#include <Wire.h>
const uint8_t AK8963 = 0X0C;//
const uint8_t WIA = 0X00;
const uint8_t MPU9250 = 0x68;
const uint8_t ACCEL_XOUT_H = 0X3B;//direccion del registro donde se aloja el valor de lectura
acelerometro
const uint8_t SMPLRT_DIV = 0X19;//registro divisor de frecuencia
//la frecuencia de muestreo del sensor es igual a la frecuencia del giroscopio divido
//el valor dado en el registro SMPLRT_DIV + 1
//Frecuencia de muestreo giroscopio output rate/(1+SMPLRT_DIV) = 8KHZ/8 = 1KHZ
const uint8_t CONFIG = 0x1A;//Registro de configuracion de tasas de muestro y filtro acelerometro y giroscopio
const uint8_t USER_CTRL = 0x6A;
const uint8_t SIGNAL_PATH_RESET = 0X68;
const uint8_t FIFO_EN = 0X23;
const uint8_t INT_ENABLE = 0X38;
const uint8_t PWR_MGMT_1 = 0x6B;
const uint8_t PWR_MGMT_2 = 0x6C;
const uint8_t ACCEL_CONFIG = 0X1C;//registro configuracion acelerometro
const uint8_t INT_PIN_CFG = 0X37;
void MPU9260_CONFIG()
{
delay(150);//espero 100 milisegundos
I2CWRITER(MPU9250 , SMPLRT_DIV, 0X07);//Envio el numero 7 al registro
I2CWRITER(MPU9250 , CONFIG, 0X00);//Giroscopio con frecuencia de muestreo de 8KHZ
I2CWRITER(MPU9250 , FIFO_EN, 0X00);
I2CWRITER(MPU9250 , ACCEL_CONFIG , 0x00);
I2CWRITER(MPU9250 , INT_ENABLE, 0X01);
I2CWRITER(MPU9250 , SIGNAL_PATH_RESET, 0x00);
I2CWRITER(MPU9250 , USER_CTRL , 0X00);
I2CWRITER(MPU9250 , PWR_MGMT_1, 0x01);
I2CWRITER(MPU9250 , PWR_MGMT_2, 0x00);
I2CWRITER(MPU9250 , INT_PIN_CFG, 0x02);
}
void I2CWRITER(uint8_t deviceAddress, uint8_t regAdress, uint8_t dato)
{
Wire.beginTransmission(deviceAddress);
Wire.write(regAdress);
Wire.write(dato);
Wire.endTransmission();
}
void setup()
{
Wire.begin(); // join i2c bus (address optional for master)
Serial.begin(9600); // start serial for output
MPU9250_CONFIG();
}
void loop() {
Wire.beginTransmission(AK8963);
Wire.write(WIA);
Wire.requestFrom(AK8963, 1);
byte c = Wire.read(); // receive a byte as character
Serial.println(c);
delay(500);// print the character
}