diff --git a/pyren3/mod_ddt_ecu.py b/pyren3/mod_ddt_ecu.py
index be847ef..7b23265 100644
--- a/pyren3/mod_ddt_ecu.py
+++ b/pyren3/mod_ddt_ecu.py
@@ -287,7 +287,7 @@ class DDTECU():
         
     hash = Address+DiagVersion+Supplier+Soft+Version
 
-    print('Address:"%s" DiagVersion:"%s" Supplier:"%s" Soft:"%s" Version:"%s"'%( Address, DiagVersion, Supplier, Soft, Version))
+    print('Address="%s" DiagVersion="%s" Supplier="%s" Soft="%s" Version="%s"'%( Address, DiagVersion, Supplier, Soft, Version))
 
     eculist = mod_ddt_utils.loadECUlist()
 
@@ -1206,6 +1206,10 @@ def AutoIdents_distance( DiagVersion, Supplier, Soft, Version, ai ):
 
 def ecuSearch(vehTypeCode, Address, DiagVersion, Supplier, Soft, Version, el, interactive = True):
 
+  # fix address problem for Nav
+  if Address=='57':
+    Address='58'
+
   if Address not in list(el.keys()):
     return []
 
diff --git a/pyren3/mod_scan_ecus.py b/pyren3/mod_scan_ecus.py
index d0484de..29a2436 100755
--- a/pyren3/mod_scan_ecus.py
+++ b/pyren3/mod_scan_ecus.py
@@ -1102,7 +1102,7 @@ def findTCOM( addr, cmd, rsp, pl_id = False ):
       vehTypeCode = ''
 
       
-  if not pl_id:
+  if cmd!='' and rsp!='':
     #print found ecus
     for r in list(se.allecus.keys()):
       if se.allecus[r]['dst']!=addr: continue