Content .. 116 117 118 119 ..

Honda Ridgeline. Manual - part 118

−

YES

11-236

Electronic Throttle Control System

DTC Troubleshooting (cont’d)

11. Turn the ignition switch OFF.

12. Replace the APP sensor (see page 11-249).

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 APP sensor A 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.

18. Reconnect all connectors.

19. 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).

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

Check for poor connections or loose

terminals at APP sensor A 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 P2123 indicated?

０１

０２

ＳＪＣ８Ａ００Ｋ７７１０００９２１２７ＦＡＡＴ３０

−

DTC P2127:

YES

11-237

APP SENSOR A/B 6P CONNECTOR

VCC4 (WHT)

SG4 (RED)

APP SENSOR A/B 6P CONNECTOR

APSB (YEL)

APP Sensor B (Throttle Position

Sensor E) 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 APP SENSOR B 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 APP sensor B and the PCM.

3. Turn the ignition switch OFF.

4. Disconnect APP sensor A/B 6P connector.

5. Turn the ignition switch ON (II).

6. Measure voltage between APP sensor A/B 6P

connector terminals No. 1 and No. 2.

Go to step 7.

Go to step 16.

7. Turn the ignition switch OFF.

8. Jump the SCS line with the HDS.

9. Disconnect PCM connector A (44P).

10. Check for continuity between APP sensor A/B 6P

connector terminal No. 3 and body ground.

Repair short in the wire between APP sensor

B and the PCM (A18), then go to step 22.

Go to step 11.

(cont’d)

Wire side of female terminals

Is ther e about 0.2 V or less?

Is ther e about 5 V ?

Is ther e continuity?

０３

０４

−

YES

11-238

Electronic Throttle Control System

DTC Troubleshooting (cont’d)

PCM CONNECTOR A (44P)

APP SENSOR A/B 6P CONNECTOR

APSB (YEL)

APP SENSOR A/B 6P CONNECTOR

APSB (YEL)

VCC4 (WHT)

JUMPER WIRE

11. Check for continuity between PCM connector

terminal A18 and APP sensor A/B 6P connector
terminal No. 3.

Go to step 12.

Repair open in the wire between APP sensor

B and the PCM (A18), then go to step 22.

12. Reconnect PCM connector A (44P).

13. Connect APP sensor A/B 6P connector terminals

No. 1 and No. 3 with a jumper wire.

14. Turn the ignition switch ON (II).

15. Check APP SENSOR B in the DATA LIST with the

HDS.

Go to step 26.

Go to step 20.

Wire side of
female terminals

Terminal side of female terminals

Wire side of female terminals

Is ther e continuity?

Is ther e about 0.2 V or less?

０５

−

YES

11-239

PCM CONNECTOR A (44P)

APP SENSOR A/B 6P CONNECTOR

VCC4
(WHT)

VCC4 (WHT)

16. Turn the ignition switch OFF.

17. Jump the SCS line with the HDS.

18. Disconnect PCM connector A (44P).

19. Check for continuity between PCM connector

terminal A25 and APP sensor A/B 6P connector
terminal No. 1.

Go to step 27.

Repair open in the wire between APP sensor

B and the PCM (A25), then go to step 22.

20. Replace the APP sensor (see page 11-249).

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. Check for Temporary DTCs or DTCs with the HDS.

Check for poor connections or loose

terminals at APP sensor B 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.

26. Turn the ignition switch OFF.

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 APP sensor B 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.

Wire side of
female terminals

Terminal side of female terminals

Is ther e continuity?

Is DT C P2127 indicated?

Content .. 116 117 118 119 ..