Acura RSX Honda Integra. Manual — part 132

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−

−

−

−

−

−

−

−

DTC P16BB:

YES

NO

YES

NO

YES

NO

YES

NO

11-234

PGM-FI System

DTC Troubleshooting (cont’d)

Alternator B Terminal Circuit

Low Voltage
(2005-2006 models)

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
• Rear window defogger on
• Headlights on high beam

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

neutral) for 1 minute.

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

Go to step 7.

Intermittent failure, 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
22-61).

7. Check for poor connections or loose terminals at

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

B line).

Go to step 8.

Reconnect 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 4-46), 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 ECM/PCM with the HDS.

11. Do the ECM/PCM idle learn procedure (see page

11-349).

12. Start the engine.

13. Check under these conditions:

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

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

neutral) for 1 minute.

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

If DTC P16BB is indicated, check for poor

connections or loose terminals at the alternator and
the under-hood fuse/relay box, then go to step 1. If
any other Temporary DTCs or DTCs are indicated,
go to the indicated DTC’s troubleshooting.

Troubleshooting is complete.

Is DT C P16BB indicated?

Ar e the connections and ter minals OK ?

Is the har ness OK ?

Ar e any T empor ar y DT Cs or DT Cs indicated?

05/06/27 17:37:54 61S6M040_110_0234

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−

−

−

−

−

−

−

−

DTC P16BC:

YES

NO

YES

NO

YES

NO

YES

NO

11-235

ALTERNATOR 4P CONNECTOR

IG1
(BLK/YEL)

ALTERNATOR 4P CONNECTOR

ALTF
(WHT/RED)

Alternator FR Terminal Circuit/

IGP Circuit Low Voltage
(2005-2006 models)

1. Check for poor connections at the alternator 4P

connector.

Go to step 2.

Reconnect the connector, then go to step 18.

2. Turn the ignition switch ON (II).

3. Clear the DTC with the HDS.

4. Start the engine.

5. Check under these conditions:

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

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

neutral) for 1 minute.

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

Go to step 8.

Intermittent failure, system is OK at this time.

Check for poor connections or loose terminals at
the alternator.

8. Turn the ignition switch OFF.

9. Disconnect the alternator 4P connector.

10. Turn the ignition switch ON (II).

11. Measure voltage between alternator 4P connector

terminal No. 1 and body ground.

Go to step 12.

Repair open in the wire between the

alternator (IG1 line) and the No. 4 ACG (10 A) fuse
in under-dash fuse/relay box, then go to step 18.

12. Measure voltage between alternator 4P connector

terminal No. 4 and body ground.

Replace the rear housing assembly of

alternator (see page 4-46), then go to step 18.

Go to step 13.

(cont’d)

Wire side of female terminals

Wire side of female terminals

Ar e the connections OK ?

Is DT C P16BC indicated?

Is ther e batter y voltage?

Is ther e about 5 V ?

05/06/27 17:37:54 61S6M040_110_0235

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−

−

−

−

YES

NO

YES

NO

11-236

PGM-FI System

DTC Troubleshooting (cont’d)

ALTERNATOR 4P CONNECTOR

ALTF
(WHT/RED)

JUMPER WIRE

ECM/PCM CONNECTOR B (24P)

ALTF (WHT/RED)

13. Turn the ignition switch OFF.

14. Jump the SCS line with the HDS.

15. Disconnect ECM/PCM connector B (24P).

16. Connect alternator 4P connector terminal No. 4 to

body ground with a jumper wire.

17. Check for continuity between ECM/PCM connector

terminal B13 and body ground.

Go to step 26.

Repair open in the wire between the ECM/

PCM (B13) and the alternator, then go to step 18.

18. Turn the ignition switch ON (II).

19. Reconnect all connectors.

20. Reset the ECM/PCM with the HDS.

21. Do the ECM/PCM idle learn procedure (see page

11-349).

22. Start the engine.

23. Check under these conditions:

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

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

neutral) for 1 minute.

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

If DTC P16BC is indicated, check for poor

connections or loose terminals at the alternator and
the ECM/PCM, then go to step 1. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

Troubleshooting is complete.

Wire side of female terminals

Wire side of female terminals

Is ther e continuity?

Ar e any T empor ar y DT Cs or DT Cs indicated?

05/06/27 17:37:55 61S6M040_110_0236

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−

YES

NO

11-237

26. Update the ECM/PCM if it does not have the latest

software, or substitute a known-good ECM/PCM
(see page 11-6).

27. Start the engine.

28. Check under these conditions:

• A/C on
• Temperature control at maximum cool
• Blower fan at maximum speed
• Rear window defogger on
• Head lights on high beam

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

neutral) for 1 minute.

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

If DTC P16BC is indicated, check for poor

connections or loose terminals at the alternator and
the ECM/PCM, then go to step 1. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

If the ECM/PCM was updated, troubleshooting

is complete. If the ECM/PCM was substituted,
replace the original ECM/PCM (see page 11-284).

Ar e any T empor ar y DT Cs or DT Cs indicated?

05/06/27 17:37:55 61S6M040_110_0237