Honda Element. Manual - part 668

Fig. 48: Measuring Voltage Between Secondary HO2S (Sensor 2) 4P Connector Terminals No. 3 
And No. 4 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there battery voltage?  

YES -Go to step 12. 

NO -Go to step 16. 

12. Turn the ignition switch OFF.  

13. Jump the SCS line with the HDS.  

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

15. Check for continuity between ECM/PCM connector terminal E21 and body ground. 

Fig. 49: Checking Continuity Between ECM/PCM Connector Terminal E21 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES -Repair short in the wire between the ECM/PCM (E21) and the secondary HO2S (Sensor 2), then go 
to step 23. 

NO -Go to step 29. 

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element

  

16. Measure voltage between secondary HO2S (Sensor 2) 4P connector terminal No. 4 and body ground. 

Fig. 50: Measuring Voltage Between Secondary HO2S (Sensor 2) 4P Connector Terminal No. 4 
And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there battery voltage?  

YES -Go to step 17. 

NO -Repair open in the wire between the secondary HO2S (Sensor 2) and the No. 4 ACG (10 A) fuse, 
then go to step 23. 

17. Turn the ignition switch OFF.  

18. Jump the SCS line with the HDS.  

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

20. Connect secondary HO2S (Sensor 2) 4P connector terminal No. 3 to body ground with a jumper wire. 

Fig. 51: Connecting Secondary HO2S (Sensor 2) 4P Connector Terminal No. 3 To Body Ground 
With Jumper Wire 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

21. Check for continuity between ECM/PCM connector terminal E21 and body ground. 

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element

  

Fig. 52: Checking Continuity Between ECM/PCM Connector Terminal E21 And Body Ground 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Is there continuity?  

YES -Go to step 29. 

NO -Repair open in the wire between the ECM/PCM (E21) and the secondary HO2S (Sensor 2), then go 
to step 23. 

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

23. Reconnect all connectors.  

24. Turn the ignition switch ON (II).  

25. Reset the ECM/PCM with the HDS.  

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

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

Is DTC P0141 indicated?  

YES -Check for poor connections or loose terminals at the secondary HO2S (Sensor 2) and the 
ECM/PCM, then go to step 1. 

NO -Go to step 28. 

28. Monitor the OBD STATUS for DTC P0141 in the DTCs MENU with the HDS indicate. 

Does the screen indicate PASSED?  

YES -Troubleshooting is complete. If any other Temporary DTCs or DTCs were indicated in step 27, go 
to the INDICATED DTCS TROUBLESHOOTING. 

NO -If the screen indicates FAILED, check for poor connections or loose terminals at the secondary 
HO2S (Sensor 2) and the ECM/PCM, then go to step 1. If the screen indicates NOT COMPLETED, keep 
idling until a result comes on. 

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element

  

29. Reconnect all connectors.  

30. 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 ).  

31. Start the engine, and let it idle.  

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

Is DTC P0141 indicated?  

YES -Check for poor connections or loose terminals at the secondary HO2S (Sensor 2) 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 31. If the ECM/PCM was substituted, go to step 1. 

NO -Go to step 33. 

33. Monitor the OBD STATUS for DTC P0141 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 secondary 
HO2S (Sensor 2) 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 31. If the ECM/PCM was 
substituted, go to step 1. If the screen indicates NOT COMPLETED, keep idling until a result comes on. 

DTC P0171: FUEL SYSTEM TOO LEAN; DTC P0172: FUEL SYSTEM TOO RICH 

P0101, P0102, P0103: Mass airflow (MAF) sensor P0107, P0108, P1128, P1129: Manifold absolute pressure 
(MAP) sensor 

P0133, P1172, P1157, P2195, P2238, P2252, P2A00: Air fuel ratio (A/F) sensor (Sensor 1) 

P0134, P0135: Air fuel ratio (A/F) sensor (Sensor 1) heater 

P0137, P0138, P0139, P2270, P2271: Secondary HO2S (Sensor 2)

NOTE:



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



If any of the DTCs listed below are indicated at the same time as DTC 
P0171 and/or P0172, troubleshoot those DTCs first, then recheck for P0171 
and/or P0172.  

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element