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Honda Ridgeline. Manual - part 115

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１０

１１

＋

−

YES

11-224

Electronic Throttle Control System

DTC Troubleshooting (cont’d)

PCM CONNECTOR C (44P)

IG1ETCS (YEL/GRN)

ETCS CONTROL RELAY 4P CONNECTOR

24. Remove the ETCS control relay (A) from the under-

hood fuse/relay box.

25. Check for continuity between PCM connector

terminal C4 and body ground.

Repair short in the wire between the ETCS

control relay and the PCM (C4), then go to step 28.

Go to step 26.

26. Check for continuity between ETCS control relay 4P

connector terminal No. 1 and body ground.

Repair short in the wire between the No. 9

DBW (THROTTLE ACTUATOR CONTROL) (15 A)
fuse and the ETCS control relay, then go to step 28.

Replace the No. 9 DBW (THROTTLE

ACTUATOR CONTROL) (15 A) fuse, then go to
step 28.

Terminal side of female terminals

Is ther e continuity?

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YES

11-225

27. Turn the ignition switch OFF.

28. Reconnect all connectors.

29. Turn the ignition switch ON (II).

30. Reset the PCM with the HDS.

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

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

Check for poor connections or loose

terminals at the ETCS control relay 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.

33. Reconnect all connectors.

34. 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).

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

Check for poor connections or loose

terminals at the ETCS control relay 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 P1659 indicated?

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−

DTC P1683:

YES

11-226

Electronic Throttle Control System

DTC Troubleshooting (cont’d)

Throttle Valve Default Position

Spring Performance Problem

Do not insert your fingers into the installed throttle
body when you turn the ignition switch ON (II) or
while the ignition switch is ON (II). If you do, you
will seriously injure your fingers if the throttle valve
is activated.

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. 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. Turn the ignition switch OFF, and wait 10 seconds.

5. Turn the ignition switch ON (II).

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

Go to step 7.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at the throttle body and the PCM.

7. Turn the ignition switch OFF.

8. Disconnect the intake air duct from the throttle

body.

9. Push the throttle valve closed as shown.

10. Release the throttle valve.

Clean the throttle body (see page 11-314),

then go to step 12.

Go to step 11.

11. Replace the throttle body (see page 11-319).

12. Turn the ignition switch ON (II).

13. Reset the PCM with the HDS.

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

15. Turn the ignition switch OFF, and wait 10 seconds.

16. Turn the ignition switch ON (II).

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

Check for poor connections or loose

terminals at the throttle body 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 DT C P1683 indicated?

Does the thr ottle valve r etur n?

Is DT C P1683 indicated?

０１

ＳＪＣ８Ａ００Ｋ７７１０００９１６８４ＦＡＡＴ３０

−

DTC P1684:

YES

11-227

Throttle Valve Return Spring

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. 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. Turn the ignition switch OFF, and wait 10 seconds.

5. Turn the ignition switch ON (II).

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

Go to step 7.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at the throttle body and the PCM.

7. Turn the ignition switch OFF.

8. Disconnect the intake air duct from the throttle

body.

9. Push the throttle valve open as shown.

10. Release the throttle valve.

Clean the throttle body (see page 11-314),

then go to step 12.

Go to step 11.

11. Replace the throttle body (see page 11-319).

12. Turn the ignition switch ON (II).

13. Reset the PCM with the HDS.

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

15. Turn the ignition switch OFF, and wait 10 seconds.

16. Turn the ignition switch ON (II).

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

Check for poor connections or loose

terminals at the throttle body 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 DT C P1684 indicated?

Does the thr ottle valve r etur n?

Is DT C P1684 indicated?

Content .. 113 114 115 116 ..