diff --git a/selfdrive/car/fw_versions.py b/selfdrive/car/fw_versions.py
index dd8936af5b..93ff304113 100755
--- a/selfdrive/car/fw_versions.py
+++ b/selfdrive/car/fw_versions.py
@@ -71,6 +71,9 @@ MAZDA_VERSION_REQUEST = bytes([uds.SERVICE_TYPE.READ_DATA_BY_IDENTIFIER]) + \
 MAZDA_VERSION_RESPONSE =  bytes([uds.SERVICE_TYPE.READ_DATA_BY_IDENTIFIER + 0x40]) + \
   p16(uds.DATA_IDENTIFIER_TYPE.VEHICLE_MANUFACTURER_ECU_SOFTWARE_NUMBER)
 
+NISSAN_DIAGNOSTIC_REQUEST = b'\x10\xC0'
+NISSAN_DIAGNOSTIC_RESPONSE = b'\x50\xC0'
+
 #NISSAN_VERSION_REQUEST = b'\x21\x83'
 #NISSAN_VERSION_RESPONSE = b'\x61\x83'
 
@@ -146,26 +149,26 @@ REQUESTS = [
   # Nissan
   (
     "nissan",
-    [NISSAN_VERSION_REQUEST],
-    [NISSAN_VERSION_RESPONSE],
+    [NISSAN_DIAGNOSTIC_REQUEST, NISSAN_VERSION_REQUEST],
+    [NISSAN_DIAGNOSTIC_RESPONSE, NISSAN_VERSION_RESPONSE],
     NISSAN_RX_OFFSET1,
   ),
   (
     "nissan",
-    [NISSAN_VERSION_REQUEST],
-    [NISSAN_VERSION_RESPONSE],
+    [NISSAN_DIAGNOSTIC_REQUEST, NISSAN_VERSION_REQUEST],
+    [NISSAN_DIAGNOSTIC_RESPONSE, NISSAN_VERSION_RESPONSE],
     NISSAN_RX_OFFSET2,
   ),
   (
     "nissan",
-    [NISSAN_VERSION_REQUEST],
-    [NISSAN_VERSION_RESPONSE],
+    [NISSAN_DIAGNOSTIC_REQUEST, NISSAN_VERSION_REQUEST],
+    [NISSAN_DIAGNOSTIC_RESPONSE, NISSAN_VERSION_RESPONSE],
     NISSAN_RX_OFFSET3,
   ),
   (
     "nissan",
-    [NISSAN_VERSION_REQUEST],
-    [NISSAN_VERSION_RESPONSE],
+    [NISSAN_DIAGNOSTIC_REQUEST, NISSAN_VERSION_REQUEST],
+    [NISSAN_DIAGNOSTIC_RESPONSE, NISSAN_VERSION_RESPONSE],
     NISSAN_RX_OFFSET4,
   ),