Content .. 92 93 94 95 ..

Honda Ridgeline. Manual - part 94

０１

０２

ＳＪＣ８Ａ００Ｋ７７１０００９１２９８ＦＡＡＴ３０

−

DTC P1298:

YES

11-140

PGM-FI System

DTC Troubleshooting (cont’d)

ELD 3P CONNECTOR

IG1 (BLK/YEL)

PCM CONNECTOR A (44P)

ELD 3P CONNECTOR

ELD (BLU/BLK)

ELD 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).

1. Start the engine, and let it idle.

2. Check the ELD 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 the ELD and the PCM.

3. Turn the ignition switch OFF.

4. Disconnect the ELD 3P connector.

5. Turn the ignition switch ON (II).

6. Measure voltage between ELD 3P connector

terminal No. 1 and body ground.

Go to step 7.

Repair open in the wire between the No. 18 IG

ACG (15 A) fuse in the under-dash fuse/relay box
and the ELD, then go to step 13.

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 PCM connector

terminal A23 and ELD 3P connector terminal No. 3.

Go to step 11.

Repair open in the wire between the PCM

(A23) and the ELD, then go to step 13.

Wire side of female terminals

Wire side of
female terminals

Terminal side of female terminals

Is 0.2 A or less indicated?

Is ther e batter y voltage?

Is ther e continuity?

０３

−

YES

11-141

ELD 3P CONNECTOR

GND (BLK)

11. Check for continuity between ELD 3P connector

terminal No. 2 and body ground.

Go to step 12.

Repair open in the wire between the ELD and

G202, then go to step 13.

12. Replace the under-hood fuse/relay box (see page

22-72).

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 the ELD unit 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. 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).

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

Check for poor connections or loose

terminals at the ELD unit 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

Is ther e continuity?

Is DT C P1298 indicated?

ＳＪＣ８Ａ００Ｋ７７１０００９１５４９ＦＡＡＴ００

−

DTC P1549:

YES

11-142

PGM-FI System

DTC Troubleshooting (cont’d)

Charging System 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).

• If a high voltage battery (24 V, etc.) is connected to

the vehicle, this DTC can be stored.

1. Turn the ignition switch ON (II).

2. Clear the DTC with the HDS.

3. Start the engine.

4. Check under these conditions:

• A/C off
• Headlights off

5. Hold the engine speed at 2,000 rpm (in Park or

neutral) 1 minute.

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

Replace the alternator (see page 4-34), then

go to step 7.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at the alternator and the under-hood fuse/relay
box.

7. Turn the ignition switch ON (II).

8. Reset the PCM with the HDS.

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

10. Start the engine.

11. Check under these conditions:

• A/C off
• Headlights off

12. Hold the engine speed at 2,000 rpm (in Park or

neutral) 1 minute.

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

Check for poor connections or loose

terminals at the alternator and the under-hood
fuse/relay box, 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 P1549 indicated?

＋

ＳＪＣ８Ａ００Ｋ７７１０００９１６ＢＢＦＡＡＴ００

−

DTC P16BB:

YES

11-143

Alternator B Terminal 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. Clear the DTC with the HDS.

3. Start the engine.

4. Check under these conditions:

• A/C on
• Temperature control at maximum cool
• Blower fan at maximum speed
• Headlights on high beam

5. Hold the engine speed at 2,000 rpm (in Park or

neutral) 1 minute.

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 alternator and the under-hood fuse/relay box,
and check the battery performance (see page
22-74).

7. Check for poor connections or loose terminals at

the alternator and the under-hood fuse/relay box
(

B line).

Go to step 8.

Repair the connectors or terminals, then go to

step 9.

8. Check for an open in the wire between the

alternator and under-hood fuse/relay box at the
starter subharness.

Replace the alternator (see page 4-34), then

go to step 9.

Repair open in the wire between the

alternator and the under-hood fuse/relay box, then
go to step 9.

9. Turn the ignition switch ON (II).

10. Reset the PCM with the HDS.

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

12. Start the engine.

13. Check under these conditions:

• A/C on
• Temperature control at maximum cool
• Blower fan at maximum speed
• Headlights on high beam

14. Hold the engine speed at 2,000 rpm (in Park or

neutral) 1 minute.

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

Check for poor connections or loose

terminals at the alternator and the under-hood
fuse/relay box, 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 P16BB indicated?

Ar e the connections and ter minals OK ?

Is the har ness OK ?

Is DT C P16BB indicated?

Content .. 92 93 94 95 ..