Honda ACCORD HYBRID 2005 Service Manual page 663

DTC P0457: EVAP System Leak Detected Fuel
Fill Cap Loose or Missing
1. Check the fuel fill cap (the cap must say ' T i g h t e n to
click"). It should turn 1/4 turn after it's tight, then it
clicks.
Is the correct fuel fill cap installed and properly
tightened?
Y E S — G o t o step 2.
NO—Replace or tighten the cap, then go to step 19.
2. Check the fuel fill cap seal (A) and the fuel fill pipe
mating surface (B). Verify that the fuel fill cap tether
cord (C) is not caught under the cap.
C
Is the fuel fill cap seal missing or damaged, is the
fuel fill pipe damaged, or is the tether cord caught
under the cap?
YES—Replace the fuel fill cap or the fuel fill pipe,
then go to step 19.
NO—Go to step 3.
3. Turn the ignition switch ON (II).
4. Clear the DTC w i t h the HDS.
5. Do the EVAP FUNCTION TEST in the INSPECTION
MENU w i t h the HDS.
Is the result OK?
YES—Intermittent failure, system is OK at this time.
Check for poor connections or loose t e r m i n a l s at
the FTP sensor, or the EVAP canister vent shut
valve and the PCM.B
N O — G o t o step 6.
6. Turn the ignition switch OFF.
7. Remove the EVAP canister vent shut valve f r o m the
EVAP canister (see page 11-437).
8. Connect the 2P connector t o the EVAP canister vent
shut valve.
9. Turn the ignition switch ON (II).
10. Do the EVAP CVS ON in the INSPECTION MENU
w i t h the HDS.
11. Check the EVAP canister vent shut valve (A)
operation.
Does the valve operate?
YES—Check the routing of the EVAP canister vent
tube, then go to step 18.
N O — G o t o step 12.
(cont'd)
11-423