Ultrasonic sensor not responding

Automative:
Hi,

The ultrasonic sensor will make an ultrasonic sound when you put the trigger pin HIGH for a certain amount of time.

The duration of the signal that the sensor gives back on the Echo pin will be your distance.

Try the following code:

#define trigPin 12

#define echoPin 13

void setup() {
 Serial.begin (9600);
 pinMode(trigPin, OUTPUT);
 pinMode(echoPin, INPUT);
}

void loop() {
  long duration, distance;
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);
  duration = pulseIn(echoPin, HIGH);
  distance = (duration/2) / 29.1;
  if (distance >= 200 || distance <= 0){
    Serial.println("Out of range");
  }
  else {
    Serial.print(distance);
    Serial.println(" cm");
  }
  delay(500);
}

It just says out of range repeatedly. Do you think the sensor is broken? I was hoping not based on the sounds. Also, is it ok to try it with different pins, like 8 and 9 or something?