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Honda Ridgeline. Manual - part 146

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０４

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YES

11-348

EVAP System

DTC Troubleshooting (cont’d)

PCS (RED/YEL)

EVAP CANISTER PURGE VALVE
2P CONNECTOR

IG1 (BLK/YEL)

EVAP CANISTER PURGE VALVE
2P CONNECTOR

11. Jump the SCS line with the HDS.

12. Disconnect PCM connector C (44P).

13. Check for continuity between EVAP canister purge

valve 2P connector terminal No. 1 and body ground.

Repair short in the wire between the EVAP

canister purge valve and the PCM (C37), then go to
step 24.

Go to step 30.

14. Turn the ignition switch OFF.

15. Disconnect the EVAP canister purge valve 2P

connector.

16. Turn the ignition switch ON (II).

17. Measure voltage between EVAP canister purge

valve 2P connector terminal No. 2 and body ground.

Go to step 18.

Repair open in the wire between the EVAP

canister purge valve and the No. 18 IG ACG (15 A)
fuse in the under-dash fuse/relay box, then go to
step 24.

18. Turn the ignition switch OFF.

19. Jump the SCS line with the HDS.

20. Disconnect PCM connector C (44P).

Wire side of female terminals

Is ther e continuity?

Is ther e batter y voltage?

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YES

11-349

PCM CONNECTOR C (44P)

PCS (RED/YEL)

EVAP CANISTER PURGE VALVE
2P CONNECTOR

PCS (RED/YEL)

EVAP CANISTER PURGE VALVE
2P CONNECTOR

21. Check for continuity between PCM connector

terminal C37 and EVAP canister purge valve 2P
connector terminal No. 1.

Go to step 22.

Repair open in the wire between the EVAP

canister purge valve and the PCM (C37), then go to
step 24.

22. At the valve side, measure resistance between

EVAP canister purge valve 2P connector terminals
No. 1 and No. 2.

Go to step 30.

Go to step 23.

23. Replace the EVAP canister purge valve (see page

11-374).

24. Reconnect all connectors.

25. Turn the ignition switch ON (II).

26. Reset the PCM with the HDS.

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

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

Check for poor connections or loose

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

Go to step 29.

(cont’d)

Wire side of
female terminals

Terminal side of female terminals

Terminal side of male terminals

Is ther e continuity?

Is ther e about 33

at r oom temper atur e?

Is DT C P0443 indicated?

−

YES

11-350

EVAP System

DTC Troubleshooting (cont’d)

29. Monitor the OBD STATUS for DTC P0443 in the

DTCs MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 28,
go to the indicated DTC’s troubleshooting.

If the screen indicates FAILED, check for poor

connections or loose terminals at the EVAP canister
purge valve and the PCM, then go to step 1. If the
screen indicates NOT COMPLETED, keep idling
until a result comes on.

30. Reconnect all connectors.

31. Update the PCM if it does not have the latest

software (see page 11-7), or substitute a known-
good PCM (see page 11-8).

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

Check for poor connections or loose

terminals at the EVAP canister purge valve and the
PCM. If the PCM was updated, substitute a known-
good PCM (see page 11-8), then recheck. If the PCM
was substituted, go to step 1.

Go to step 32.

33. Monitor the OBD STATUS for DTC P0443 in the

DTCs MENU with the HDS.

If the PCM was updated, troubleshooting is

complete. If the PCM was substituted, replace the
original PCM (see page 11-205). If any other
Temporary DTCs or DTCs were indicated in step 32,
go to the indicated DTC’s troubleshooting.

If the screen indicates FAILED, check for poor

connections or loose terminals at the EVAP canister
purge valve and the PCM. If the PCM was updated,
substitute a known-good PCM (see page 11-8), then
recheck. If the PCM was substituted, go to step 1. If
the screen indicates NOT COMPLETED, keep idling
until a result comes on.

Does the scr een indicate PASSED?

Is DT C P0443 indicated?

Does the scr een indicate PASSED?

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−

DTC P0451:

YES

11-351

FTP Sensor Circuit Range/

Performance Problem

NOTE:

• Before you troubleshoot, record all freeze data and

any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

• If DTC P2422 is stored at the same time as DTC P0451,

troubleshoot DTC P2422 first, then recheck for DTC
P0451.

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Start the engine, and let it idle 1 minute.

4. Monitor the OBD STATUS for DTC P0451 in the

DTCs MENU with the HDS.

Go to step 5.

If the screen indicates PASSED, intermittent

failure, the system is OK at this time. Check for
poor connections or loose terminals at the FTP
sensor and the PCM. If the screen indicates NOT
COMPLETED, go to step 3 and recheck.

5. Turn the ignition switch OFF.

6. Replace the FTP sensor (see page 11-374).

7. Turn the ignition switch ON (ll).

8. Reset the PCM with the HDS.

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

10. Start the engine, and let it idle 1 minute.

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

Check for poor connections or loose

terminals at the FTP sensor and the PCM, then go
to step 1.

Go to step 12.

12. Monitor the OBD STATUS for DTC P0451 in the

DTCs MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 11,
go to the indicated DTC’s troubleshooting.

If the screen indicates FAILED, check for poor

connections or loose terminals at the FTP sensor
and the PCM, then go to step 1. If the screen
indicates NOT COMPLETED, go to step 10.

Does the scr een indicate F AILED?

Is DT C P0451 indicated?

Does the scr een indicate PASSED?

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