diff --git a/radio/src/pulses/pulses.cpp b/radio/src/pulses/pulses.cpp
index 801c75098..7d18f0d34 100755
--- a/radio/src/pulses/pulses.cpp
+++ b/radio/src/pulses/pulses.cpp
@@ -462,6 +462,7 @@ void enablePulsesExternalModule(uint8_t protocol)
     externalModuleDriver->deinit(externalModuleContext);
     externalModuleDriver = nullptr;
     externalModuleContext = nullptr;
+    EXTERNAL_MODULE_PWR_OFF();
   } else {
     extmoduleStop();
   }
@@ -740,6 +741,7 @@ void stopPulsesExternalModule()
       mixerSchedulerSetPeriod(EXTERNAL_MODULE, 0);
       extmoduleStop();
     }
+    EXTERNAL_MODULE_PWR_OFF();
     moduleState[EXTERNAL_MODULE].protocol = PROTOCOL_CHANNELS_NONE;
   }
 }
diff --git a/radio/src/pulses/pxx2.cpp b/radio/src/pulses/pxx2.cpp
index 83a331c19..5ebe964ea 100644
--- a/radio/src/pulses/pxx2.cpp
+++ b/radio/src/pulses/pxx2.cpp
@@ -750,7 +750,7 @@ static void pxx2DeInitExternal(void* context)
   (void)context;
 
   mixerSchedulerSetPeriod(EXTERNAL_MODULE, 0);
-  extmoduleStop();
+  ExtmoduleSerialDriver.deinit();
 }
 
 static void pxx2SetupPulsesExternal(void* context, int16_t* channels, uint8_t nChannels)