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Honda Ridgeline. Manual - part 76

０３

０４

−

YES

11-68

PGM-FI System

DTC Troubleshooting (cont’d)

PCM CONNECTOR C (44P)

IAT SENSOR 2P CONNECTOR

SG2 (GRN/YEL)

PCM CONNECTOR C (44P)

IAT SENSOR 2P CONNECTOR

IAT (RED/YEL)

12. Turn the ignition switch OFF.

13. Jump the SCS line with the HDS.

14. Disconnect PCM connector C (44P).

15. Check for continuity between PCM connector

terminal C14 and IAT sensor 2P connector terminal
No. 2.

Go to step 27.

Repair open in the wire between the PCM

(C14) and the IAT sensor, then go to step 22.

16. Turn the ignition switch OFF.

17. Jump the SCS line with the HDS.

18. Disconnect PCM connector C (44P).

19. Check for continuity between PCM connector

terminal C26 and IAT sensor 2P connector terminal
No. 1.

Go to step 27.

Repair open in the wire between the PCM

(C26) and the IAT sensor, then go to step 22.

Wire side of
female terminals

Terminal side of female terminals

Wire side of
female terminals

Terminal side of female terminals

Is ther e continuity?

−

YES

11-69

20. Turn the ignition switch OFF.

21. Replace the IAT sensor (see page 11-202).

22. Reconnect all connectors.

23. Turn the ignition switch ON (II).

24. Reset the PCM with the HDS.

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

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

Check for poor connections or loose

terminals at the IAT sensor and the PCM, then go to
step 1.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

27. Reconnect all connectors.

28. 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).

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

Check for poor connections or loose

terminals at the IAT sensor and the PCM. If the PCM
was updated, substitute a known-good PCM
(see page 11-8), then recheck. If the PCM was
substituted, go to step 1.

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 are indicated, go to the
indicated DTC’s troubleshooting.

Is DT C P0113 indicated?

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−

DTC P0116:

YES

11-70

PGM-FI System

DTC Troubleshooting (cont’d)

ECT Sensor 1 Range/

Performance Problem

NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

1. Turn the ignition switch ON (II).

2. Check ECT SENSOR 1 in the DATA LIST with the

HDS.

Go to step 6.

Go to step 3.

3. Note the value of ECT SENSOR 1 in the DATA LIST

with the HDS.

4. 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.

5. Check ECT SENSOR 1 in the DATA LIST with the

HDS.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at ECT sensor 1 and the PCM.

Go to step 11.

6. Note the value of ECT SENSOR 1 in the DATA LIST

with the HDS.

7. Turn the ignition switch OFF.

8. Open the hood, and let the engine cool for 3 hours.

9. Turn the ignition switch ON (II).

10. Check ECT SENSOR 1 in the DATA LIST with the

HDS.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at ECT sensor 1 and the PCM.

Go to step 11.

11. Turn the ignition switch OFF.

12. Replace ECT sensor 1 (see page 11-201).

13. Turn the ignition switch ON (II).

14. Reset the PCM with the HDS.

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

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

Check for poor connections or loose

terminals at ECT sensor 1 and the PCM, then go to
step 1.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

Is about 17 6 °F ( 80 °C) or mor e, or 0.7 8 V or less
indicated?

Does ECT SENSOR 1 change 18 °F ( 10 °C) or
mor e?

Is DT C P0116 indicated?

０１

ＳＪＣ８Ａ００Ｋ７７１０００９０１１７ＦＡＡＴ３０

−

DTC P0117:

YES

11-71

ECT SENSOR 1 2P CONNECTOR

ECT1 (RED/WHT)

ECT Sensor 1 Circuit Low Voltage

NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

1. Turn the ignition switch ON (II).

2. Check ECT SENSOR 1 in the DATA LIST with the

HDS.

Go to step 3.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at ECT sensor 1 and the PCM.

3. Turn the ignition switch OFF.

4. Disconnect the ECT sensor 1 2P connector.

5. Turn the ignition switch ON (II).

6. Check ECT SENSOR 1 in the DATA LIST with the

HDS.

Go to step 7.

Go to step 11.

7. Turn the ignition switch OFF.

8. Jump the SCS line with the HDS.

9. Disconnect PCM connector C (44P).

10. Check for continuity between ECT sensor 1 2P

connector terminal No. 1 and body ground.

Repair short in the wire between ECT

sensor 1 and the PCM (C27), then go to step 13.

Go to step 18.

11. Turn the ignition switch OFF.

12. Replace ECT sensor 1 (see page 11-201).

13. Reconnect all connectors.

14. Turn the ignition switch ON (II).

15. Reset the PCM with the HDS.

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

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

Check for poor connections or loose

terminals at ECT sensor 1 and the PCM, then go to
step 1.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

(cont’d)

Wire side of female terminals

Is about 356 °F ( 180 °C) or mor e, or 0.08 V or less
indicated?

Is ther e continuity?

Is DT C P0117 indicated?

Content .. 74 75 76 77 ..