can u help me to check this code maybe something is missing or something

Question

//Sensor Ultrasonic
#include <NewPing.h>
#define TRIGGER_PIN  4  // Arduino pin tied to trigger pin on the ultrasonic sensor.
#define ECHO_PIN     6  // Arduino pin tied to echo pin on the ultrasonic sensor.
#define MAX_DISTANCE 50 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.
NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.

float sensorUS;
int enablePin = 11;
int in1Pin = 10;
int in2Pin = 9;
int switchPin = 7;
float defuz, pwm;

//Sensor Suhu
float PinSuhu = A2;
int vin;
int PinUS = A1;
float sensorSuhu;
float temp;

//Rule Base
float suhu [3];
float jarak [3];
float rule [3][3];
float rule00, rule01, rule02;
float rule10, rule11, rule12;
float rule20, rule21, rule22;

//suhu
void setup() {
  vin = analogRead(PinSuhu);
  sensorSuhu = (500 * vin) / 1024;
  // ultrasonic
  unsigned int uS = sonar.ping();  // Send ping, get ping time in microseconds (uS).
  sensorUS = (sonar.convert_cm(uS)); // Convert ping time to distance and print result (0 = outside set distance range, no ping echo)
}
void setMotor(int speed, boolean reverse)
{
  analogWrite(enablePin, speed);
  digitalWrite(in1Pin, ! reverse);
  digitalWrite(in2Pin, reverse);
}

void FuzzySuhu() {
  // untuk suhu dingin
  if (sensorSuhu <= 22.5)
  {
    suhu [0] = 1;
  }
  else if (sensorSuhu > 22.5 && sensorSuhu <= 25)
  {
    suhu [0] = (25 - sensorSuhu) / (25 - 22.5);
  }
  else
  {
    suhu [0] = 0;
  }

  // untuk suhu hangat
  if (sensorSuhu <= 22.5)
  {
    suhu [1] = 0;
  }
  else if (sensorSuhu > 22.5 && sensorSuhu <= 25)
  {
    suhu [1] = (sensorSuhu - 22.5) / (25 - 22.5);
  }
  else if (sensorSuhu > 25 && sensorSuhu <= 27.5)
  {
    suhu [1] = (27.5 - sensorSuhu) / (27.5 - 25);
  }
  else
  {
    suhu [1] = 0;
  }

  // untuk suhu panas
  if (sensorSuhu <= 25)
  {
    suhu [2] = 0;
  }
  else if (sensorSuhu > 25 && sensorSuhu <= 27.5)
  {
    suhu [2] = (sensorSuhu - 25) / (27.5 - 25);
  }
  else
  {
    suhu [2] = 1;
  }
}

void FuzzyJarak() {
  // untuk  kondisi dekat
  if (sensorUS <= 10)
  {
    jarak [0] = 1;
  }
  else if (sensorUS > 10 && sensorUS <= 20)
  {
    jarak [0] = (20 - sensorUS) / (20 - 10);
  }
  else
  {
    jarak [0] = 0;
  }

  // untuk kondisi sedang
  if (sensorUS <= 10)
  {
    jarak [1] = 0;
  }
  else if (sensorUS > 10 && sensorUS <= 20)
  {
    jarak [1] = (sensorUS - 10) / (20 - 10);
  }
  else if (sensorUS > 20 && sensorUS <= 40)
  {
    jarak [1] = (40 - sensorUS) / (40 - 20);
  }
  else
  {
    jarak [1] = 0;
  }

  // untuk kondisi jauh
  if (sensorSuhu <= 20)
  {
    jarak [2] = 0;
  }
  else if (sensorUS > 20 && sensorUS <= 30)
  {
    jarak [2] = (sensorUS - 20) / (30 - 20);
  }
  else if (sensorUS > 30)
  {
    jarak [2] = 1;
  }
}

void RuleEva () {
  int i, j;
  for ( i = 0; i <= 2; i = i + 1)
  {
    for ( j = 0; j <= 2; j = j + 1)
    {
      temp = min(suhu[i], jarak[j]);
      rule [i][j] = temp;
    }
  }
  rule00 = rule [0][0]; // (dingin,dekat = Lambat)
  rule01 = rule [0][1]; // (dingin,sedang = Lambat)
  rule02 = rule [0][2]; // (dingin,jauh = Lambat)

  rule10 = rule [1][0]; // (hangat,dekat = lambat)
  rule11 = rule [1][1]; // (hangat,sedang = Sedang)
  rule12 = rule [1][2]; // (hangat,jauh = Cepat)

  rule20 = rule [2][0]; // (panas,dekat = Cepat)
  rule21 = rule [2][1]; // (panas,sedang = Cepat)
  rule22 = rule [2][2]; // (panas,jauh= Cepat)

}

void Defuzzy () {
  // metode sugeno (weighted average)
  float lambat = 100;
  float sedang = 200;
  float cepat = 250;
  RuleEva();
  pwm = (rule00 * lambat) + (rule01 * lambat) + (rule02 * lambat) + (rule10 * lambat) + (rule11 * sedang) + (rule12 * cepat) + (rule20 * cepat) + (rule21 * cepat) + (rule22 * cepat);

  defuz = 0;
  int i, j;
  for ( i = 0; i <= 2; i = i + 1)
  {
    for ( j = 0; j <= 2; j = j + 1)
    {
      defuz = defuz + rule [i][j];
    }
  }
  pwm = pwm / defuz;
}