diff --git a/mod/scorm/lib.php b/mod/scorm/lib.php
index 620d71e35f0..2416be80fdf 100644
--- a/mod/scorm/lib.php
+++ b/mod/scorm/lib.php
@@ -1449,12 +1449,30 @@ function scorm_check_mode($scorm, &$newattempt, &$attempt, $userid, &$mode) {
     }
     // Check if the scorm module is incomplete (used to validate user request to start a new attempt).
     $incomplete = true;
+
+    // Note - in SCORM_13 the cmi-core.lesson_status field was split into
+    // 'cmi.completion_status' and 'cmi.success_status'.
+    // 'cmi.completion_status' can only contain values 'completed', 'incomplete', 'not attempted' or 'unknown'.
+    // This means the values 'passed' or 'failed' will never be reported for a track in SCORM_13 and
+    // the only status that will be treated as complete is 'completed'.
+
+    $completionelements = array(
+        SCORM_12 => 'cmi.core.lesson_status',
+        SCORM_13 => 'cmi.completion_status',
+        SCORM_AICC => 'cmi.core.lesson_status'
+    );
+    $scormversion = scorm_version_check($scorm->version);
+    if($scormversion===false) {
+        $scormversion = SCORM_12;
+    }
+    $completionelement = $completionelements[$scormversion];
+
     $sql = "SELECT sc.id, t.value
               FROM {scorm_scoes} sc
          LEFT JOIN {scorm_scoes_track} t ON sc.scorm = t.scormid AND sc.id = t.scoid
-                   AND t.element = 'cmi.core.lesson_status' AND t.userid = ? AND t.attempt = ?
+                   AND t.element = ? AND t.userid = ? AND t.attempt = ?
              WHERE sc.scormtype = 'sco' AND sc.scorm = ?";
-    $tracks = $DB->get_recordset_sql($sql, array($userid, $attempt, $scorm->id));
+    $tracks = $DB->get_recordset_sql($sql, array($completionelement, $userid, $attempt, $scorm->id));
 
     foreach ($tracks as $track) {
         if (($track->value == 'completed') || ($track->value == 'passed') || ($track->value == 'failed')) {
diff --git a/mod/scorm/tests/generator/lib.php b/mod/scorm/tests/generator/lib.php
index 97435974a2e..2828a02fefa 100644
--- a/mod/scorm/tests/generator/lib.php
+++ b/mod/scorm/tests/generator/lib.php
@@ -45,7 +45,6 @@ class mod_scorm_generator extends testing_module_generator {
         $record = (array)$record + array(
             'scormtype' => SCORM_TYPE_LOCAL,
             'packagefile' => '',
-            'packagefilepath' => $CFG->dirroot.'/mod/scorm/tests/packages/singlescobasic.zip',
             'packageurl' => '',
             'updatefreq' => SCORM_UPDATE_NEVER,
             'popup' => 0,
@@ -72,6 +71,9 @@ class mod_scorm_generator extends testing_module_generator {
             'auto' => $cfgscorm->auto,
             'displayactivityname' => $cfgscorm->displayactivityname
         );
+        if (empty($record['packagefilepath'])) {
+            $record['packagefilepath'] = $CFG->dirroot.'/mod/scorm/tests/packages/singlescobasic.zip';
+        }
 
         // The 'packagefile' value corresponds to the draft file area ID. If not specified, create from packagefilepath.
         if (empty($record['packagefile']) && $record['scormtype'] === SCORM_TYPE_LOCAL) {
diff --git a/mod/scorm/tests/lib_test.php b/mod/scorm/tests/lib_test.php
index 0fcc38ec408..9440e24d63d 100644
--- a/mod/scorm/tests/lib_test.php
+++ b/mod/scorm/tests/lib_test.php
@@ -67,6 +67,48 @@ class mod_scorm_lib_testcase extends externallib_advanced_testcase {
         $this->getDataGenerator()->enrol_user($this->teacher->id, $this->course->id, $this->teacherrole->id, 'manual');
     }
 
+    /** Test scorm_check_mode
+     *
+     * @return void
+     */
+    public function test_scorm_check_mode() {
+        global $CFG;
+
+        $newattempt = 'on';
+        $attempt = 1;
+        $mode = 'normal';
+        scorm_check_mode($this->scorm, $newattempt, $attempt, $this->student->id, $mode);
+        $this->assertEquals('off', $newattempt);
+
+        $scoes = scorm_get_scoes($this->scorm->id);
+        $sco = array_pop($scoes);
+        scorm_insert_track($this->student->id, $this->scorm->id, $sco->id, 1, 'cmi.core.lesson_status', 'completed');
+        $newattempt = 'on';
+        scorm_check_mode($this->scorm, $newattempt, $attempt, $this->student->id, $mode);
+        $this->assertEquals('on', $newattempt);
+
+        // Now do the same with a SCORM 2004 package.
+        $record = new stdClass();
+        $record->course = $this->course->id;
+        $record->packagefilepath = $CFG->dirroot.'/mod/scorm/tests/packages/RuntimeBasicCalls_SCORM20043rdEdition.zip';
+        $scorm13 = $this->getDataGenerator()->create_module('scorm', $record);
+        $newattempt = 'on';
+        $attempt = 1;
+        $mode = 'normal';
+        scorm_check_mode($scorm13, $newattempt, $attempt, $this->student->id, $mode);
+        $this->assertEquals('off', $newattempt);
+
+        $scoes = scorm_get_scoes($scorm13->id);
+        $sco = array_pop($scoes);
+        scorm_insert_track($this->student->id, $scorm13->id, $sco->id, 1, 'cmi.completion_status', 'completed');
+
+        $newattempt = 'on';
+        $attempt = 1;
+        $mode = 'normal';
+        scorm_check_mode($scorm13, $newattempt, $attempt, $this->student->id, $mode);
+        $this->assertEquals('on', $newattempt);
+    }
+
     /**
      * Test scorm_view
      * @return void
diff --git a/mod/scorm/tests/packages/RuntimeBasicCalls_SCORM20043rdEdition.zip b/mod/scorm/tests/packages/RuntimeBasicCalls_SCORM20043rdEdition.zip
new file mode 100644
index 00000000000..417c50b42d9
Binary files /dev/null and b/mod/scorm/tests/packages/RuntimeBasicCalls_SCORM20043rdEdition.zip differ
diff --git a/mod/scorm/tests/packages/readme_moodle.txt b/mod/scorm/tests/packages/readme_moodle.txt
index 6c691314bc8..49898592c06 100644
--- a/mod/scorm/tests/packages/readme_moodle.txt
+++ b/mod/scorm/tests/packages/readme_moodle.txt
@@ -6,6 +6,7 @@ Sample Packages downloaded from http://scorm.com/scorm-explained/technical-scorm
 * singlescobasic.zip - Single SCO with basic runtime calls. SCORM 1.2.
 * singlesco_scorm12.zip - Single SCO content packaging example. SCORM 1.2.
 * RuntimeMinimumCalls_SCORM12.zip - Multi-SCO packaging example. SCORM 1.2.
+* RuntimeBasicCalls_SCORM20043rdEdition.zip - Multi-SCO packaging example. SCORM 2004 3rd edition.
 
 These packages were downloaded from http://scorm.com/ website,  the website
 disclaimer states that *Content on this site is licensed under a Creative