DTC Troubleshooting: P05A0
DTC P05A0: Shutter Grille Assembly (Upper) Malfunction
NOTE: Before you troubleshoot, review the general troubleshooting information.

DTC Description
Confirmed DTC
Pending DTC
P05A0 Shutter Grille Assembly (Upper) Malfunction
    

1.
Problem verification:

Problem verification
?1.
Turn the vehicle to the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Turn the vehicle to the OFF (LOCK) mode.

?4.
Start the engine, then let it idle.

?5.
Check the parameter(s) below with the HDS.
Signal
Threshold
Current conditions
Values
Unit
Values
Unit
Upper shutter grill block error
Normal
      
Upper shutter grill initial learning error
Completed
      

Do the current condition(s) match the threshold?

     
YES
     
     
     
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at the shutter grille (upper) and the PCM. If the on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the on-board snapshot.?
     
NO
     
     
     
Go to step 2.
2.
Shutter grille condition check:

Shutter grille condition check
?1.
Turn the vehicle to the OFF (LOCK) mode.

?2.
Inspect the upper shutter grille for any damage or foreign materials caught in the shutter assembly.

Is the shutter grille OK?

     
YES
     
     
     
Go to step 3.
     
NO
     
     
     
Remove the foreign material or replace the shutter grille (upper).?
3.
Shorted wire check (VMP line):

Shorted wire check (VMP line)
?1.
Check the following fuse.
Fuse
No. A23 (10 A)
Location
Under-hood fuse/relay box

Is the fuse OK?

     
YES
     
     
     
Go to step 4.
     
NO
     
     
     
Repair a short in the VMP wire between shutter grille (upper) and the No. A23 (10 A) fuse. Also replace the No. A23 (10 A) fuse.?
4.
Open wire check (VMP line):

Open wire check (VMP line)
?1.
Disconnect the following connector.
Shutter grille (upper) 4P connector

?2.
Measure the voltage between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Shutter grille (upper) 4P connector: disconnected
Test point 1
Shutter grille (upper) 4P connector (female terminals) No. 1:
Test point 2
Body ground


Is there battery voltage?

     
YES
     
     
     
Go to step 5.
     
NO
     
     
     
Repair an open in the VMP wire between the shutter grille (upper) and the No. A23 (10 A) fuse in the under-hood fuse/relay box.?
5.
Open wire check (GND line):

Open wire check (GND line)
?1.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
 
Shutter grille (upper) 4P connector: disconnected
Test point 1
Shutter grille (upper) 4P connector (female terminals) No. 4:
Test point 2
Body ground


Is there continuity?

     
YES
     
     
     
     
NO
     
     
     
Repair an open in the GND wire between the shutter grille (upper) and G351.?