diff --git a/Nav.php b/Nav.php
index 7bd411c..b50ad7f 100644
--- a/Nav.php
+++ b/Nav.php
@@ -192,9 +192,7 @@ class Nav extends Widget
                 $label .= ' ' . $this->dropDownCaret;
             }
             if (is_array($items)) {
-                if ($this->activateItems) {
-                    $items = $this->isChildActive($items, $active);
-                }
+                $items = $this->isChildActive($items, $active);
                 $items = $this->renderDropdown($items, $item);
             }
         }
@@ -258,6 +256,9 @@ class Nav extends Widget
      */
     protected function isItemActive($item)
     {
+        if (!$this->activateItems) {
+            return false;
+        }
         if (isset($item['url']) && is_array($item['url']) && isset($item['url'][0])) {
             $route = $item['url'][0];
             if ($route[0] !== '/' && Yii::$app->controller) {
diff --git a/tests/NavTest.php b/tests/NavTest.php
index f70296d..c6df667 100644
--- a/tests/NavTest.php
+++ b/tests/NavTest.php
@@ -1,7 +1,10 @@
 <?php
 namespace yiiunit\extensions\bootstrap;
 
+use yii\base\Action;
+use yii\base\Module;
 use yii\bootstrap\Nav;
+use yii\web\Controller;
 
 /**
  * Tests for Nav widget
@@ -10,6 +13,26 @@ use yii\bootstrap\Nav;
  */
 class NavTest extends TestCase
 {
+    protected function setUp()
+    {
+        $this->mockWebApplication([
+            'components' => [
+                'request' => [
+                    'class' => 'yii\web\Request',
+                    'scriptUrl' => '/base/index.php',
+                    'hostInfo' => 'http://example.com/',
+                    'url' => '/base/index.php&r=site%2Fcurrent&id=42'
+                ],
+                'urlManager' => [
+                    'class' => 'yii\web\UrlManager',
+                    'baseUrl' => '/base',
+                    'scriptUrl' => '/base/index.php',
+                    'hostInfo' => 'http://example.com/',
+                ]
+            ],
+        ]);
+    }
+
     public function testIds()
     {
         Nav::$counter = 0;
@@ -125,27 +148,150 @@ EXPECTED;
      */
     public function testExplicitActive()
     {
+        $this->mockAction('site', 'index');
+
         Nav::$counter = 0;
         $out = Nav::widget([
             'activateItems' => false,
             'items' => [
                 [
                     'label' => 'Item1',
-                    //'url' => ['some/route1'],
                     'active' => true,
                 ],
                 [
                     'label' => 'Item2',
-                    //'url' => ['some/route2'],
+                    'url' => ['site/index'],
+                ],
+            ],
+        ]);
+
+        $expected = <<<EXPECTED
+<ul id="w0" class="nav"><li class="active"><a href="#">Item1</a></li>
+<li><a href="/base/index.php?r=site%2Findex">Item2</a></li></ul>
+EXPECTED;
+
+        $this->assertEqualsWithoutLE($expected, $out);
+        $this->removeMockedAction();
+    }
+
+    /**
+     * @see https://github.com/yiisoft/yii2-bootstrap/issues/162
+     */
+    public function testImplicitActive()
+    {
+        $this->mockAction('site', 'index');
+
+        Nav::$counter = 0;
+        $out = Nav::widget([
+            'items' => [
+                [
+                    'label' => 'Item1',
+                    'active' => true,
+                ],
+                [
+                    'label' => 'Item2',
+                    'url' => ['site/index'],
                 ],
             ],
         ]);
 
         $expected = <<<EXPECTED
 <ul id="w0" class="nav"><li class="active"><a href="#">Item1</a></li>
-<li><a href="#">Item2</a></li></ul>
+<li class="active"><a href="/base/index.php?r=site%2Findex">Item2</a></li></ul>
+EXPECTED;
+
+        $this->assertEqualsWithoutLE($expected, $out);
+        $this->removeMockedAction();
+    }
+
+    /**
+     * @see https://github.com/yiisoft/yii2-bootstrap/issues/162
+     */
+    public function testExplicitActiveSubitems()
+    {
+        $this->mockAction('site', 'index');
+
+        Nav::$counter = 0;
+        $out = Nav::widget([
+            'activateItems' => false,
+            'items' => [
+                [
+                    'label' => 'Item1',
+                ],
+                [
+                    'label' => 'Item2',
+                    'items' => [
+                        ['label' => 'Page2', 'content' => 'Page2', 'url' => ['site/index']],
+                        ['label' => 'Page3', 'content' => 'Page3', 'active' => true],
+                    ],
+                ],
+            ],
+        ]);
+
+        $expected = <<<EXPECTED
+<ul id="w0" class="nav"><li><a href="#">Item1</a></li>
+<li class="dropdown"><a class="dropdown-toggle" href="#" data-toggle="dropdown">Item2 <span class="caret"></span></a><ul id="w1" class="dropdown-menu"><li><a href="/base/index.php?r=site%2Findex" tabindex="-1">Page2</a></li>
+<li class="active dropdown-header">Page3</li></ul></li></ul>
+EXPECTED;
+
+        $this->assertEqualsWithoutLE($expected, $out);
+        $this->removeMockedAction();
+    }
+
+    /**
+     * @see https://github.com/yiisoft/yii2-bootstrap/issues/162
+     */
+    public function testImplicitActiveSubitems()
+    {
+        $this->mockAction('site', 'index');
+
+        Nav::$counter = 0;
+        $out = Nav::widget([
+            'items' => [
+                [
+                    'label' => 'Item1',
+                ],
+                [
+                    'label' => 'Item2',
+                    'items' => [
+                        ['label' => 'Page2', 'content' => 'Page2', 'url' => ['site/index']],
+                        ['label' => 'Page3', 'content' => 'Page3', 'active' => true],
+                    ],
+                ],
+            ],
+        ]);
+
+        $expected = <<<EXPECTED
+<ul id="w0" class="nav"><li><a href="#">Item1</a></li>
+<li class="dropdown"><a class="dropdown-toggle" href="#" data-toggle="dropdown">Item2 <span class="caret"></span></a><ul id="w1" class="dropdown-menu"><li class="active"><a href="/base/index.php?r=site%2Findex" tabindex="-1">Page2</a></li>
+<li class="active dropdown-header">Page3</li></ul></li></ul>
 EXPECTED;
 
         $this->assertEqualsWithoutLE($expected, $out);
+        $this->removeMockedAction();
     }
+
+    /**
+    * Mocks controller action with parameters
+    *
+    * @param string $controllerId
+    * @param string $actionID
+    * @param string $moduleID
+    * @param array  $params
+    */
+   protected function mockAction($controllerId, $actionID, $moduleID = null, $params = [])
+   {
+       \Yii::$app->controller = $controller = new Controller($controllerId, \Yii::$app);
+       $controller->actionParams = $params;
+       $controller->action = new Action($actionID, $controller);
+
+       if ($moduleID !== null) {
+           $controller->module = new Module($moduleID);
+       }
+   }
+
+   protected function removeMockedAction()
+   {
+       \Yii::$app->controller = null;
+   }
 }