Honda Element. Manual - part 488

Fig. 6: Measuring Voltage Between EVAP Canister Purge Valve 2P Connector Terminal No. 1 And 
Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there battery voltage?  

YES -Go to step 18. 

NO -Repair open in the wire between the EVAP canister purge valve and the No. 4 ACG (10 A) fuse in 
the under-dash fuse/relay box, then go to step 25. 

18. Turn the ignition switch OFF.  

19. Jump the SCS line with the HDS.  

20. Disconnect ECM/PCM connector B (24P).  

21. Connect EVAP canister purge valve 2P connector terminal No. 2 to body ground with a jumper wire. 

Fig. 7: Connecting EVAP Canister Purge Valve 2P Connector Terminal No. 2 To Body Ground 
With Jumper Wire 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

22. Check for continuity between ECM/PCM connector terminal B21 and body ground. 

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE EVAP System - Element

  

Fig. 8: Checking Continuity Between ECM/PCM Connector Terminal B21 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES -Go to step 23. 

NO -Repair open in the wire between the EVAP canister purge valve and the ECM/PCM (B21), then go 
to step 25. 

23. At the purge valve side, measure resistance between EVAP canister purge valve 2P connector terminals 

No. 1 and No. 2. 

Fig. 9: Measuring Resistance Between EVAP Canister Purge Valve 2P Connector Terminals No. 1 
And No. 2 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there about 24.5 ohms, at room temperature?  

YES -Go to step 31. 

NO -Go to step 24. 

24. Replace the EVAP canister purge valve (see EVAP CANISTER PURGE VALVE REPLACEMENT ).

25. Reconnect all connectors.  

26. Turn the ignition switch ON (II).  

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE EVAP System - Element

  

27. Reset the ECM/PCM with the HDS.  

28. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).  

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

Is DTC P0443 indicated?  

YES -Check for poor connections or loose terminals at the EVAP canister purge valve and the 
ECM/PCM, then go to step 1. 

NO -Go to step 30. 

30. Monitor the OBD STATUS for DTC P0443 in the DTCs MENU with the HDS. 

Does the screen indicate PASSED?  

YES -Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 29, go 
to the INDICATED DTCS TROUBLESHOOTING. 

NO -If the screen indicates FAILED, check for poor connections or loose terminals at the EVAP canister 
purge valve and the ECM/PCM, then go to step 1. If the screen indicates EXECUTING or OUT OF 
CONDITION, keep idling until a result comes on. 

31. Reconnect all connectors.  

32. Update the ECM/PCM if it does not have the latest software (see UPDATING THE ECM/PCM ), or 

substitute a known-good ECM/PCM (see SUBSTITUTING THE ECM/PCM ).  

33. Start the engine, and let it idle.  

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

Is DTC P0443 indicated?  

YES -Check for poor connections or loose terminals at the EVAP canister purge valve and the 
ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see SUBSTITUTING 
THE ECM/PCM ), then go to step 33. If the ECM/PCM was substituted, go to step 1. 

NO -Go to step 35. 

35. Monitor the OBD STATUS for DTC P0443 in the DTCs MENU with the HDS. 

Does the screen indicate PASSED?  

YES -If the ECM/PCM was updated, troubleshooting is complete. If the ECM/PCM was substituted, 
replace the original ECM/PCM (see ECM/PCM REPLACEMENT ). If any other Temporary DTCs or 
DTCs were indicated in step 34, go to the INDICATED DTCS TROUBLESHOOTING. 

NO -If the screen indicates FAILED, cheek for poor connections or loose terminals at the EVAP canister 

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE EVAP System - Element

  

purge valve and the ECM/PCM. If the ECM/PCM was updated, substitute a known-good ECM/PCM (see 
SUBSTITUTING THE ECM/PCM ), then recheck. If the ECM/PCM was substituted, go to step 1. If 
the screen indicates EXECUTING or OUT OF CONDITION, keep idling until a result comes on. 

DTC P0451: FTP SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM 

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. 

Does the screen indicate FAILED?  

YES -Go to step 5. 

NO -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 ECM/PCM. If the screen indicates NOT 
COMPLETED, keep idling until a result comes on. 

5. Turn the ignition switch OFF.  

6. Replace the FTP sensor (see FTP SENSOR REPLACEMENT ).  

7. Turn the ignition switch ON (II).  

8. Reset the ECM/PCM with the HDS.  

9. Do the ECM/PCM idle learn procedure (see ECM/PCM IDLE LEARN PROCEDURE ).  

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

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

Is DTC P0451 indicated?  

YES -Check for poor connections or loose: terminals at the FTP sensor and the ECM/PCM, then go to 
step 1. 

NO -Go to step 12. 

12. Monitor the OBD STATUS for DTC P0451 in the DTCs MENU with the HDS. 

Does the screen indicate PASSED?  

NOTE:



Before you troubleshoot, record all freeze data and any on-board 
snapshot, and review the general troubleshooting information (see 
GENERAL TROUBLESHOOTING INFORMATION ).  



If DTC P2422 is stored at the same time as DTC P0451, troubleshoot DTC 
P2422 first, then recheck for DTC P0451.  

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE EVAP System - Element