DTC P05A0

DTC P05A0  : Shutter Grille Assembly (Upper) Malfunction

NOTE:  Before you troubleshoot, review the general troubleshooting information .

DTC (PGM-FI)

1. 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. Enter the maintenance mode, then start the engine , and let it idle.

   -5. Check the parameter(s) below with the HDS.

   Signal	Threshold		Current conditions
   	Values	Unit	Values	Unit
   Upper shutter grille block error	Normal
   Upper shutter grille 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 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 

   The failure is duplicated. Go to step 2.

2. Shutter grille condition check

   -1. Check for condition (damage, fixation, foreign material, etc.) at shutter grille.

   Is the shutter grille OK?

   YES 

   Go to step 3.

   NO 

   Reassembly or repair the shutter grille if needed.

3. Fuse check

   -1. Turn the vehicle to the OFF (LOCK) mode.

   -2. Check the following fuse.

   Fuse

   No. A22

   Is the fuse OK?

   YES 

   Go to step 4.

   NO 

   Repair a short in the +B_FR_FOG/VMP wire between the No. A22 fuse and the shutter grille. Also replace the No. A22 fuse.

4. Open wire check (+B_FR_FOG/VMP line)

   -1. Disconnect the following connector.

   Shutter grille 4P connector

   -2. Measure the voltage between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Shutter grille 4P connector: disconnected
   Test point 1	Shutter grille 4P connector (female terminals) No. 1:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there battery voltage?

   YES 

   The +B_FR_FOG/VMP wire is OK. Go to step 5.

   NO 

   Repair an open in the +B_FR_FOG/VMP wire between the shutter grille and the No. A22 fuse .

5. Open wire check (GND line)

   -1. Measure the resistance between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Shutter grille 4P connector: disconnected
   Test point 1	Shutter grille 4P connector (female terminals) No. 4:
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there 1.0 Ω or less?

   YES 

   The GND wire is OK. Replace the shutter grille .

   NO 

   Repair an open in the GND wire between the shutter grille and G351.