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