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Acura RSX Honda Integra. Manual - part 24

０１

Ｓ６Ｍ６ＡＥＪＡ１４１０００１６８０２ＦＡＡＴ００

−

K20A3 Engine (2002-2004 Models)

YES

4-32

Charging System

Charging System Indicator Circuit Troubleshooting

ENGINE WIRE HARNESS 8P CONNECTOR

IG (BLK/YEL)

1. Turn the ignition switch ON (II).

Go to step 2.

Go to step 3.

2. Start the engine.

Charging system indicator circuit is OK. Go

to the Alternator and Regulator Circuit
Troubleshooting (see page 4-39).

Go to step 3.

3. Do the gauge assembly self-diagnostic function

procedure (see page 22-68).

Go to step 4.

Replace the gauge assembly (see page 22-74).

4. Turn the ignition switch OFF.

5. Disconnect the engine wire harness 8P connector

from the starter subharness 8P connector.

6. Turn the ignition switch ON (II).

7. Measure the voltage between engine wire harness

8P connector terminal No. 4 and body ground.

Go to step 8.

Check for a blown No. 4 (10 A) fuse in the

under-dash fuse/relay box. If the fuse is OK, repair
open in the wire between the alternator and under-
dash fuse/relay box.

8. Turn the ignition switch OFF.

NOTE: This step must be done to protect the engine
control module (ECM)/powertrain control module
(PCM) from damage.

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

Wire side of female terminals

Does the char ging system indicator come on?

Does the char ging system indicator go of f ?

Does the char ging system indicator f lash?

Is ther e batter y voltage?

０１

０２

Ｓ６Ｍ６ＡＦＤＡ１４１０００１６８０２ＦＡＡＴ００

−

YES

K20A3 Engine (2005-2006 Models)

4-33

ECM/PCM CONNECTOR B (24P)

ALTL (WHT/BLU)

L (WHT/BLU)

ENGINE WIRE
HARNESS 8P
CONNECTOR

ECM/PCM CONNECTOR B (24P)

ALTL (WHT/BLU)

10. Check for continuity between ECM/PCM connector

terminal B10 and engine wire harness 8P connector
terminal No. 8.

Go to step 11.

Repair an open in the wire between the

alternator and the ECM/PCM.

11. Check for continuity between ECM/PCM connector

terminal B10 and body ground.

Repair a short in the wire between the

alternator and the ECM/PCM.

Go to the Alternator and Regulator Circuit

Troubleshooting (see page 4-39).

1. Turn the ignition switch ON (II).

Go to step 2.

Go to step 11.

2. Shift to Park or Neutral, and start the engine. Hold

the engine speed at 2,000 rpm for 1 minute.

Charging system indicator circuit is OK. Go

to the Alternator and Regulator Circuit
Troubleshooting (see page 4-39).

Go to step 3.

3. Do the gauge assembly self-diagnostic function

procedure (see page 22-68).

Go to step 4.

Replace the gauge assembly (see page 22-74).

4. Turn the ignition switch OFF.

5. Disconnect the engine wire harness 8P connector

from the starter subharness 8P connector.

6. Turn the ignition switch ON (II).

Replace the alternator (see page 4-46) or

repair the alternator (see page 4-48).

Go to step 7.

(cont’d)

Wire side of female terminals

Is ther e continuity?

Does the char ging system indicator come on?

Does the char ging system indicator go of f ?

Does the char ging system indicator f lash?

Does the char ging system indicator go of f ?

＊０１

０４

−

YES

4-34

Charging System

Charging System Indicator Circuit Troubleshooting (cont’d)

ECM/PCM CONNECTOR B (24P)

ALTL (WHT/BLU)

ENGINE WIRE HARNESS 8P CONNECTOR

L
(WHT/BLU)

JUMPER
WIRE

7. Turn the ignition switch OFF.

8. Connect the Honda Diagnostic System (HDS) to the

data link connector (DLC) (see step 2 on page 11-3).
Turn the ignition switch ON (II), and jump the SCS
line with the HDS, then turn the ignition switch OFF.

NOTE: This step must be done to protect the engine
control module (ECM)/powertrain control module
(PCM) from damage.

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

10. Check for continuity between ECM/PCM connector

terminal B10 and body ground.

Repair a short in the wire between the

alternator and the ECM/PCM.

Update the ECM/PCM if it does not have the

latest software (see page 11-6), or substitute a
known-good ECM/PCM (see page 11-7), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-284).

11. Do the gauge assembly self-diagnostic function

procedure (see page 22-68).

Go to step 12.

Replace the gauge assembly (see page 22-74).

12. Turn the ignition switch OFF.

13. Disconnect the engine wire harness 8P connector

from the starter subharness 8P connector.

14. Connect engine wire harness 8P connector terminal

No. 8 and body ground with a jumper wire.

15. Turn the ignition switch ON (II).

Replace the alternator (see page 4-46) or

repair the alternator (see page 4-48).

Go to step 16.

Wire side of female terminals

Is ther e continuity?

Does the char ging system indicator f lash?

Does the char ging system indicator come on?

＊０２

Ｓ６Ｍ６Ａ１２Ａ１４１００００００００ＦＡＡＴ００

−

YES

K20A2 Engine (2002-2004 Models)

4-35

ECM/PCM CONNECTOR B (24P)

ALTL (WHT/BLU)

16. Connect the HDS to the DLC (see step 2 on page

11-3). Turn the ignition switch ON (II), and jump the
SCS line with the HDS, then turn the ignition switch
OFF.

NOTE: This step must be done to protect the ECM/
PCM from damage.

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

18. Check for continuity between ECM/PCM connector

terminal B10 and body ground.

Update the ECM/PCM if it does not have the

Repair an open in the wire between the

alternator and the ECM/PCM.

1. Turn the ignition switch ON (II).

Go to step 2.

Go to step 3.

2. Start the engine.

Charging system indicator circuit is OK. Go

to the Alternator and Regulator Circuit
Troubleshooting (see page 4-39).

Go to step 3.

3. Do the gauge assembly self-diagnostic function

procedure (see page 22-48).

Go to step 4.

Replace the gauge assembly (see page 22-74).

4. Turn the ignition switch OFF.

5. Disconnect the engine wire harness 6P connector

from the starter subharness 6P connector.

6. Turn the ignition switch ON (II).

(cont’d)

Wire side of female terminals

Is ther e continuity?

Does the char ging system indicator come on?

Does the char ging system indicator go of f ?

Does the char ging system indicator f lash?

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