Content .. 147 148 149 150 ..

Honda Ridgeline. Manual - part 149

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YES

11-360

EVAP System

DTC Troubleshooting (cont’d)

14. Select EVAP CVS OFF in the INSPECTION MENU

with the HDS.

15. Disconnect the fresh air hose (A) from the EVAP

canister vent shut valve (B), and plug the EVAP
canister vent shut valve port (C).

16. Apply vacuum to the EVAP system until the FTP

reads 1.90 V (

0.59 in.Hg,

15.1 mmHg).

17. Monitor the FTP SENSOR in the DATA LIST for

1 minute with the HDS.

Go to step 18.

Replace the EVAP canister vent shut valve,

then go to step 21.

18. Check for a loose or damaged EVAP canister purge

line between the EVAP canister and the EVAP
canister purge valve.

Replace these parts, then go to step 21:

• FTP sensor O-ring
• EVAP canister vent shut valve case and O-ring
• EVAP canister

Reconnect or repair the EVAP canister purge

hose, then go to step 21.

19. Select EVAP CVS OFF in the INSPECTION MENU

with the HDS.

20. Check these parts for looseness or damage:

• Fuel fill pipe
• Fuel vapor return pipe

Check the fuel tank unit base gasket

(see page 11-297), and check the fuel tank, then go
to step 21.

Repair or replace the damaged parts, then go

to step 21.

21. Reconnect all hoses and connectors.

22. Turn the ignition switch ON (II).

23. Reset the PCM with the HDS.

24. Do the PCM idle learn procedure (see page 11-273).

25. Do the EVAP FUNCTION TEST in the INSPECTION

MENU with the HDS.

Go to step 26.

Check for poor connections or loose terminals

at the FTP sensor, the EVAP canister purge valve,
the EVAP canister vent shut valve, and the PCM,
then go to step 1.

26. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals at the FTP sensor, the EVAP canister
purge valve, the EVAP canister vent shut valve, and
the PCM, then go to step 1.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

Does the voltage incr ease mor e than 0.2 V
( 0.1 in.Hg, 2.5 mmHg)?

Is the line OK ?

Ar e the par ts OK ?

Is the r esult OK ?

Is DT C P0455 and/ or P0456 indicated?

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DTC P0457:

YES

11-361

EVAP System Leak Detected/Fuel

Fill Cap Loose or Missing

NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

1. Check the fuel fill cap (the cap must say ‘‘Tighten to

click’’). It should turn 1/4 turn after it’s tight, then it
clicks.

Go to step 2.

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.

Replace the fuel fill cap or the fuel fill pipe,

then go to step 19.

Go to step 3.

3. Turn the ignition switch ON (II).

4. Clear the DTC with the HDS.

5. Do the EVAP FUNCTION TEST in the INSPECTION

MENU with the HDS.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister vent shut
valve, and the PCM.

Go to step 6.

6. Turn the ignition switch OFF.

7. Remove the EVAP canister vent shut valve from the

EVAP canister (see page 11-375).

8. Connect the 2P connector to the EVAP canister vent

shut valve.

9. Turn the ignition switch ON (II).

10. Select EVAP CVS ON in the INSPECTION MENU

with the HDS.

11. Check the EVAP canister vent shut valve (A)

operation.

Check the routing of the EVAP canister vent

tube, then go to step 18.

Go to step 12.

(cont’d)

Is the cor r ect f uel f ill cap installed and pr oper ly
tightened?

Is the f uel f ill cap seal missing or damaged, is the
f uel f ill pipe damaged, or is the tether cor d caught
under the cap?

Is the r esult OK ?

Does the valve oper ate?

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YES

11-362

EVAP System

DTC Troubleshooting (cont’d)

12. Turn the ignition switch OFF.

13. Replace the EVAP canister vent shut valve

(see page 11-375).

14. Turn the ignition switch ON (II).

15. Reset the PCM with the HDS.

16. Do the PCM idle learn procedure (see page 11-273).

17. Do the EVAP FUNCTION TEST in the INSPECTION

MENU with the HDS.

Go to step 23.

Check for poor connections or loose terminals

at the FTP sensor, the EVAP canister vent shut
valve, and the PCM, then go to step 1.

18. Reinstall the EVAP canister vent shut valve.

19. Turn the ignition switch ON (II).

20. Reset the PCM with the HDS.

21. Do the PCM idle learn procedure (see page 11-273).

22. Do the EVAP FUNCTION TEST in the INSPECTION

MENU with the HDS.

Go to step 23.

Check for poor connections or loose terminals

at the FTP sensor, the EVAP canister vent shut
valve, and the PCM, then go to step 1.

23. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals at the FTP sensor, the EVAP canister vent
shut valve, and the PCM, then go to step 1.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

Is the r esult OK ?

Is DT C P0457 indicated?

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DTC P0496:

YES

11-363

EVAP System High Purge Flow

NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Do the EVAP FUNCTION TEST in the INSPECTION

MENU with the HDS.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at the FTP sensor, the EVAP canister purge valve,
the EVAP canister vent shut valve, and the PCM.

Go to step 4.

4. Turn the ignition switch OFF.

5. Replace the EVAP canister purge valve (see page

11-374).

6. Turn the ignition switch ON (II).

7. Reset the PCM with the HDS.

8. Do the PCM idle learn procedure (see page 11-273).

9. Do the EVAP FUNCTION TEST in the INSPECTION

MENU with the HDS.

Go to step 10.

Check for poor connections or loose terminals

at the FTP sensor, the EVAP canister purge valve,
the EVAP canister vent shut valve, and the PCM,
then go to step 1.

10. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals at the FTP sensor, the EVAP canister
purge valve, the EVAP canister vent shut valve, and
the PCM, then go to step 1.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

Is the r esult OK ?

Is DT C P0496 indicated?

Content .. 147 148 149 150 ..