Honda Element. Manual - part 665

Fig. 40: Checking Continuity Between ECM/PCM Connector Terminal E8 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES -Repair short in the wire between the ECM/PCM (E8) and the A/F sensor relay (LAF), then go to 
step 24. 

NO -Go to step 21. 

21. Check for continuity between ECM/PCM connector terminal E8 and A/F sensor relay (LAF) 4P 

connector terminal No. 3. 

Fig. 41: Checking Continuity Between ECM/PCM And A/F Sensor Relay (LAF) 4P Connector 
Terminals 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES -Go to step 22. 

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element

  

NO -Repair open in the wire between the ECM/PCM (E8) and the A/F sensor relay (LAF), then go to 
step 24. 

22. Check the A/F sensor relay (LAF) (see POWER RELAY TEST ). 

Is the A/F sensor relay (LAF) OK?  

YES -Go to step 30. 

NO -Replace the A/F sensor relay (LAF), then go to step 24. 

23. Replace the A/F sensor (Sensor 1) (see A/F SENSOR REPLACEMENT ).  

24. Reconnect all connectors.  

25. Turn the ignition switch ON (II).  

26. Reset the ECM/PCM with the HDS.  

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

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

Is DTC P0135 indicated?  

YES -Check for poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM, 
then go to step 1. 

NO -Go to step 29. 

29. Monitor the OBD STATUS for DTC P0135 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 28, go 
to the INDICATED DTCS TROUBLESHOOTING. 

NO -If the screen indicates FAILED, check for poor connections or loose terminals at the A/F sensor 
(Sensor 1) and the ECM/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 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 ).  

32. Start the engine, and let it idle.  

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

Is DTC P0135 indicated?  

YES -Check for poor connections or loose terminals at the A/F sensor (Sensor 1), the A/F sensor relay 

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element

  

(LAF), 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 32. If the ECM/PCM was substituted, go to step 1.

NO -Go to step 34. 

34. Monitor the OBD STATUS for DTC P0135 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 32, go to the INDICATED DTCS TROUBLESHOOTING. 

NO -If the screen indicates FAILED, check for poor connections or loose terminals at the A/F sensor 
(Sensor 1), the A/F sensor relay (LAF), 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 32. If the 
ECM/PCM was substituted, go to step 1. If the screen indicates NOT COMPLETED, keep idling until a 
result comes on. 

DTC P0137: SECONDARY HO2S (SENSOR 2) CIRCUIT LOW VOLTAGE 

1. Turn the ignition switch ON (II).  

2. Clear the DTC with the HDS.  

3. Start the engine, and let it idle without load (in Park or neutral) until the radiator fan comes on.  

4. Check the HO2S S2 in the DATA LIST with the HDS. 

Does the voltage stay at 0.05 V or less?  

YES -Go to step 5. 

NO -Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals at 
the secondary HO2S (Sensor 2) and the ECM/PCM. 

5. Turn the ignition switch OFF.  

6. Disconnect the secondary HO2S (Sensor 2) 4P connector.  

7. Turn the ignition switch ON (II).  

8. Check the HO2S S2 in the DATA LIST with the HDS. 

Does the voltage stay at 0.05 V or less?  

YES -Go to step 9. 

NOTE:

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

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element

  

NO -Go to step 13. 

9. Turn the ignition switch OFF.  

10. Jump the SCS line with the HDS.  

11. Disconnect ECM/PCM connector E (31P).  

12. Check for continuity between secondary HO2S (Sensor 2) 4P connector terminal No. 2 and body ground. 

Fig. 42: Checking Continuity Between Secondary HO2S (Sensor 2) 4P Connector Terminal No. 2 
And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES -Repair short in the wire between the ECM/PCM (E20) and the secondary HO2S (Sensor 2), then go 
to step 15. 

NO -Go to step 23. 

13. Turn the ignition switch OFF.  

14. Replace the secondary HO2S (Sensor 2) (see A/F SENSOR REPLACEMENT ).  

15. Reconnect all connectors.  

16. Turn the ignition switch ON (II).  

17. Reset the ECM/PCM with the HDS.  

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

19. Start the engine, and let it idle without load (in Park or neutral) until the radiator fan comes on.  

20. Test-drive under these conditions: 



Engine coolant temperature (ECT SENSOR 1) above 158°F (70°C)  



A/T in D position (M/T in 4th gear)  



Engine speed at 1,500-3,000 rpm  



Drive 1 minute or more  

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

Is DTC P0137 indicated?  

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element