Fuel Cap Warning Message System Troubleshooting - Honda Accord 2008 Manual

07/11/02 09:20:25 61TA0000_110_0426
EVAP System

Fuel Cap Warning Message System Troubleshooting

Special Tools Required
• Vacuum/pressure gauge, 0 4 in.Hg 07JAZ-001000B
• Vacuum pump/gauge, 0 30 in.Hg, Snap-on YA4000A
or equivalent, commercially available
Do this procedure if the fuel cap warning message
comes on frequently, or if the message does not go off
after the fuel fill cap is tightened and the vehicle is
driven several days.
1. Check the fuel fill cap (the cap must say TIGHTEN
TO CLICK). It should turn 1/4 after it's tight, then it
clicks.
Is the correct f uel f ill cap installed and properly
tightened?
YES
NO −
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.
＊０１
C
A
Is the f uel f ill cap seal missing or damaged, is the
f uel f ill pipe damaged, or is the tether cord caught
under the cap?
YES
then go to step 13.
NO −
11-426
−
−
− Go to step 2.
Replace or tighten the cap, then go to step 13.
−
Replace the fuel fill cap or the fuel fill pipe,
Go to step 3.
3. Reinstall and tighten the fuel fill cap.
4. Clear the DTC with the HDS.
5. Start the engine. Hold the engine speed at
3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle for 1 minute.
6. Test drive at 45 mph (72 km/h) for 1 minute or more.
Does f uel cap warning message come on?
YES − Go to step 7.
−
NO Intermittent failure, the system is OK at this
time.
7. Turn the ignition switch to LOCK (0).
8. Disconnect the vacuum hose (A) from the EVAP
canister purge valve (B) in the engine compartment,
and connect a T-fitting (C) from the vacuum gauge
and the vacuum pump/gauge 0 30 in.Hg, to the
EVAP canister purge valve as shown.
B
A
07JAZ-001000B
ＴＡ０８ＡＥ４Ａ２０３２３４０００００ＦＡＡＴ００
−
B
C
＊０２