Honda Element. Manual — part 667

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 EXECUTING, keep
driving until a result comes on. If the screen indicates OUT OF CONDITION, go to step 25.

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 without load (in Park or neutral) until the radiator fan comes on.

32. 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

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

Is DTC P0138 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 34.

34. Monitor the OBD STATUS for DTC P0138 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 33, 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 EXECUTING, keep driving until a result comes on. If the
screen indicates OUT OF CONDITION, go to step 31.

DTC P0139: SECONDARY HO2S (SENSOR 2) SLOW RESPONSE

2007 Honda Element EX

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element

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. 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)



Vehicle speed at 35 mph (56 km/h) or more



Drive about 15 seconds

5. Monitor the OBD STATUS for DTC P0139 in the DTCs MENU with the HDS.

Does the screen indicate FAILED?

YES -Go to step 6.

NO -If the screen indicates PASSED, 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. If the screen
indicates EXECUTING, keep driving until a result comes on. If the screen indicates OUT OF
CONDITION, go to step 3 and recheck.

6. Turn the ignition switch OFF.

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

8. Turn the ignition switch ON (II).

9. Reset the ECM/PCM with the HDS.

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

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

12. 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)



Vehicle speed at 35 mph (56 km/h) or more



Drive about 15 seconds

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

Is DTC P0139 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 14.

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

14. Monitor the OBD STATUS for DTC P0139 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 13, 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 EXECUTING, keep
driving until a result comes on. If the screen indicates OUT OF CONDITION, go to step 11.

DTC P0141: SECONDARY HO2S (SENSOR 2) HEATER CIRCUIT MALFUNCTION

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Start the engine.

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

Is DTC P0141 indicated?

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. Check the No. 4 ACG (10 A) fuse in the under-dash fuse/relay box.

Is the fuse OK?

YES -Go to step 7.

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

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

8. At the secondary HO2S (Sensor 2) side, measure resistance between secondary HO2S (Sensor 2) 4P

connector terminals No. 3 and No. 4.

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

Fig. 46: Measuring Resistance Between Secondary Ho2S (Sensor 2) 4P Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there 5.0- 6.4 0. at room temperature?

YES -Go to step 9.

NO -Go to step 22.

9. At the secondary HO2S (Sensor 2) side, check for continuity between body ground and secondary HO2S

(Sensor 2) 4P connector terminals No. 3 and No. 4 individually.

Fig. 47: Checking Continuity Between Body Ground And Secondary HO2S (Sensor 2) 4P
Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Is there continuity?

YES -Go to step 22.

NO -Go to step 10.

10. Turn the ignition switch ON (II).

11. Measure voltage between secondary HO2S (Sensor 2) 4P connector terminals No. 3 and No. 4.

2007 Honda Element EX

2007-2008 ENGINE PERFORMANCE PGM-FI System - Element