Index: sources/canbus/messageinterpreter.cpp
===================================================================
diff -u -r3aab84456cfbdc4c4f495975ba9b8968eb844309 -r0a2ca0373a422201d5316df8fb891ef38799e3f9
--- sources/canbus/messageinterpreter.cpp	(.../messageinterpreter.cpp)	(revision 3aab84456cfbdc4c4f495975ba9b8968eb844309)
+++ sources/canbus/messageinterpreter.cpp	(.../messageinterpreter.cpp)	(revision 0a2ca0373a422201d5316df8fb891ef38799e3f9)
@@ -85,9 +85,12 @@
 
 bool MessageInterpreter::isDataLenValid(const Gui::GuiActionType &vActionId, const QVariantList &vData)
 {
-    if (vData.count() == 0) {
+    if (vActionId == Gui::GuiActionType::ID_KeepAlive)
+        return true; // This message is an exception which is also used to generate fake data and it has a variable length.
+
+    if (vData.length() < payloadLen[vActionId]) {
         QString mActionIdHexString = Format::toHexString(vActionId);
-        LOG_DEBUG(QString("Incorrect data for transmit Message with ID '%1'").arg(mActionIdHexString));
+        LOG_DEBUG(QString("Incorrect data length for transmit Message with ID '%1'").arg(mActionIdHexString));
         return false;
     }
     return true;