Content .. 79 80 81 82 ..

Honda Ridgeline. Manual - part 81

０１

０２

ＳＪＣ８Ａ００Ｋ７７１０００９０１３８ＦＡＡＴ３０

−

DTC P0138:

DTC P0158:

YES

11-88

PGM-FI System

DTC Troubleshooting (cont’d)

SECONDARY HO2S (SENSOR 2) 4P CONNECTOR

SG2 (GRN/YEL)
SG6 (GRN/YEL)*

JUMPER WIRE

SHO2SB1 (GRN)
SHO2SB2 (WHT)*

SECONDARY HO2S (SENSOR 2) 4P CONNECTOR

SHO2SB1 (GRN)
SHO2SB2 (WHT)*

JUMPER WIRE

Rear Secondary HO2S (Bank 1,

Sensor 2) Circuit High Voltage

Front Secondary HO2S (Bank 2,

Sensor 2) Circuit High Voltage

NOTE:

• Before you troubleshoot, record all freeze data and

any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

• Information marked with an asterisk ( ) applies to the

front bank (Bank 2).

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

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

Go to step 5.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at the secondary HO2S (Sensor 2) and the PCM.

5. Turn the ignition switch OFF.

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

connector.

7. Connect secondary HO2S (Sensor 2) 4P connector

terminals No. 1 and No. 2 with a jumper wire.

8. Turn the ignition switch ON (II).

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

Go to step 10.

Go to step 19.

10. Turn the ignition switch OFF.

11. Remove the jumper wire from the secondary HO2S

(Sensor 2) 4P connector.

12. Connect secondary HO2S (Sensor 2) 4P connector

terminal No. 1 to body ground with a jumper wire.

13. Turn the ignition switch ON (II).

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

Go to step 15.

Repair open in the wire between the PCM

(C14 (C39) ) and the secondary HO2S (Sensor 2),
then go to step 21.

Wire side of female terminals

Does the voltage stay at 1.25 V or mor e?

−

０３

−

YES

11-89

PCM CONNECTOR B (44P)

SHO2SB1
(GRN)

SHO2SB2
(WHT)*

15. Turn the ignition switch OFF.

16. Jump the SCS line with the HDS.

17. Disconnect PCM connector B (44P).

18. Check for continuity between PCM connector

terminal B15 (B16) and body ground.

Go to step 29.

Repair open in the wire between the PCM

(B15 (B16) ) and the secondary HO2S (Sensor 2),
then go to step 21.

19. Turn the ignition switch OFF.

20. Replace the secondary HO2S (Sensor 2) (see page

11-200).

21. Reconnect all connectors.

22. Turn the ignition switch ON (II).

23. Reset the PCM with the HDS.

24. Do the PCM idle learn procedure (see page 11-273).

25. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

26. Test-drive under these conditions:

• Engine coolant temperature (ECT SENSOR 1)

above 176 °F (80 °C)

• Transmission in D position
• Engine speed at 1,500

3,000 rpm

• Drive 1 minute or more

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

Check for poor connections or loose

terminals at the secondary HO2S (Sensor 2) and
the PCM, then go to step 1.

Go to step 28.

28. Monitor the OBD STATUS for DTC P0138 and/or

P0158 in the DTCs MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 27,
go to the indicated DTC’s troubleshooting.

If the screen indicates FAILED, check for poor

connections or loose terminals at the secondary
HO2S (Sensor 2) and the 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.

(cont’d)

Terminal side of female terminals

Is ther e continuity?

Is DT C P0138 and/ or P0158 indicated?

Does the scr een indicate PASSED?

−

YES

11-90

PGM-FI System

DTC Troubleshooting (cont’d)

29. Reconnect all connectors.

30. Update the PCM if it does not have the latest

software (see page 11-7), or substitute a known-
good PCM (see page 11-8).

31. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

32. Test-drive under these conditions:

• Engine coolant temperature (ECT SENSOR 1)

above 176 °F (80 °C)

• Transmission in D position
• Engine speed at 1,500

3,000 rpm

• Drive 1 minute or more

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

Check for poor connections or loose

terminals at the secondary HO2S (Sensor 2) and
the PCM. If the PCM was updated, substitute a
known-good PCM (see page 11-8), then go to step
32. If the PCM was substituted, go to step 1.

Go to step 34.

34. Monitor the OBD STATUS for DTC P0138 and/or

P0158 in the DTCs MENU with the HDS.

If the PCM was updated, troubleshooting is

complete. If the PCM was substituted, replace the
original PCM (see page 11-205). If any other
Temporary DTCs or DTCs were indicated in step 33,
go to the indicated DTC’s troubleshooting.

If the screen indicates FAILED, check for poor

connections or loose terminals at the secondary
HO2S (Sensor 2) and the PCM. If the PCM was
updated, substitute a known-good PCM (see page
11-8), then go to step 32. If the PCM was substituted,
go to step 1. If the screen indicates NOT
COMPLETED, go to step 32.

Is DT C P0138 and/ or P0158 indicated?

Does the scr een indicate PASSED?

−

ＳＪＣ８Ａ００Ｋ７７１０００９０１３９ＦＡＡＴ３０

−

DTC P0139:

DTC P0159:

YES

11-91

Rear Secondary HO2S (Bank 1,

Sensor 2) Slow Response

Front Secondary HO2S (Bank 2,

Sensor 2) Slow Response

NOTE:

• Before you troubleshoot, record all freeze data and

any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

• Information marked with an asterisk ( ) applies to the

front bank (Bank 2).

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

4. Test-drive under these conditions:

• Engine coolant temperature (ECT SENSOR 1)

above 176 °F (80 °C)

• Transmission in D position
• Vehicle speed between 35

55 mph

(56

88 km/h)

• Drive 5 minutes or more

5. Monitor the OBD STATUS for DTC P0139 and/or

P0159 in the DTCs MENU with the HDS.

Go to step 6.

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 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 page

11-200).

8. Turn the ignition switch ON (II).

9. Reset the PCM with the HDS.

10. Do the PCM idle learn procedure (see page 11-273).

11. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

12. Test-drive under these conditions:

• Engine coolant temperature (ECT SENSOR 1)

above 176 °F (80 °C)

• Transmission in D position
• Vehicle speed between 35

55 mph

(56

88 km/h)

• Drive 5 minutes or more

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

Check for poor connections or loose

terminals at the secondary HO2S (Sensor 2) and
the PCM, then go to step 1.

Go to step 14.

14. Monitor the OBD STATUS for DTC P0139 and/or

P0159 in the DTCs MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 13,
go to the indicated DTC’s troubleshooting.

If the screen indicates FAILED, check for poor

Does the scr een indicate F AILED?

Is DT C P0139 and/ or P0159 indicated?

Does the scr een indicate PASSED?

Content .. 79 80 81 82 ..