diff --git a/src/js/controller.js b/src/js/controller.js
index 6cf861a..64f8286 100644
--- a/src/js/controller.js
+++ b/src/js/controller.js
@@ -93,9 +93,9 @@ angular.module('focaAbmVehiculo')
     ])
     .controller('focaAbmVehiculoController', [
         '$scope', 'focaAbmVehiculoService', '$routeParams', '$location', '$uibModal',
-        'focaModalService', '$timeout', 'focaBotoneraLateralService', '$window',
+        'focaModalService', '$timeout', 'focaBotoneraLateralService',
         function($scope, focaAbmVehiculoService, $routeParams, $location, $uibModal,
-        focaModalService, $timeout, focaBotoneraLateralService, $window) {
+        focaModalService, $timeout, focaBotoneraLateralService) {
             $scope.nuevo = $routeParams.idVehiculo === '0' ? true : false;
             $scope.now = new Date();
             $scope.focused = 1;
@@ -162,8 +162,16 @@ angular.module('focaAbmVehiculo')
                 }
             };
             $scope.guardar = function(key) {
+
                 key = (typeof key  === 'undefined') ? 13 : key;
+
                 if(key === 13) {
+
+                    if($scope.formVehiculo.$pristine) {
+                        $scope.cancelar();
+                        return;
+                    }
+
                     //Valida si existe numero de unidad
                     if(!validaTotalCargas() && !$scope.nuevo) {
                         focaModalService.alert('La suma de las capacidades de las cisternas' +
@@ -233,7 +241,7 @@ angular.module('focaAbmVehiculo')
                         total += parseInt(cisterna.capacidad);
                     }
                 });
-                return $scope.vehiculo.capacidad == total;
+                return $scope.vehiculo.capacidad === total;
             }
 
             function guardarCisternas() {
diff --git a/src/js/controllerCisterna.js b/src/js/controllerCisterna.js
index 72e5163..c679843 100644
--- a/src/js/controllerCisterna.js
+++ b/src/js/controllerCisterna.js
@@ -1,9 +1,9 @@
 angular.module('focaAbmVehiculo')
     .controller('focaAbmVehiculoCisternaController', [
         '$scope', 'focaAbmVehiculoService', '$routeParams', '$location', '$uibModal',
-        'focaModalService', 'focaBotoneraLateralService', '$timeout', '$window',
+        'focaModalService', 'focaBotoneraLateralService', '$timeout',
         function($scope, focaAbmVehiculoService, $routeParams, $location, $uibModal,
-        focaModalService, focaBotoneraLateralService, $timeout, $window) {
+        focaModalService, focaBotoneraLateralService, $timeout) {
             $scope.nuevo = ($routeParams.idx > -1) ? false : true;
             $scope.editar = false;
             $scope.now = new Date();
@@ -54,6 +54,12 @@ angular.module('focaAbmVehiculo')
                 $location.path('/vehiculo/' + $routeParams.idVehiculo);
             };
             $scope.guardar = function() {
+
+                if($scope.formCisterna.$pristine) {
+                    $scope.cancelar();
+                    return;
+                }
+
                 if(!$scope.cisterna.unidadMedida) {
                     focaModalService.alert('Ingrese unidad de medida');
                     return;
@@ -101,11 +107,11 @@ angular.module('focaAbmVehiculo')
                             cisternas.forEach(function(cisterna, idx) {
                                 //SI EL CODIGO YA EXISTE
                                 if(cisterna.codigo === $scope.cisterna.codigo &&
-                                    idx != $routeParams.idx &&
+                                    idx !== $routeParams.idx &&
                                     !cisterna.desactivado) {
                                     reject('Código de cisterna existente');
                                 }
-                                if(idx != $routeParams.idx &&
+                                if(idx !== $routeParams.idx &&
                                     !cisterna.desactivado) {
                                     totalCargado += cisterna.capacidad;
                                 }