2006 ACURA CSX alternator

Î
Î
µ
µ
µ
µ µ
µ
YES
NO
YES
NO
YES
NO
4-27
ALTERNATOR 4P CONNECTOR
L
(WHT/BLU) JUMPER
WIER
ALT L
(WHT/BLU)
ECM/PCM CONNECTOR B (44P)
L
(WHT/BLU)
ALTERNATOR
4P CONNECTOR
14. Do the gauge control module self-diagnostic function procedure (see page 22-241).
Go to step 15.
Replace the gauge control module (tach)
(see page 22-277).
15. Turn the ignition switch to LOCK (0).
16. Disconnect the alternator 4P connector.
17. Connect alternator 4P connector terminal No. 3 and body ground with a jumper wire.
18. Turn the ignition switch to ON (II). Replace the alternator (see page 4-34), or
repair the alternator (see page 4-38).
Disconnect the jumper wire, then go to step
19.
19. Turn the ignition switch to LOCK (0). 20. Connect the HDS to the DLC (see step 2 on page
11-3).
21. Turn the ignition switch to ON (II).
22. Make sure the HDS communicates with the vehicle and the ECM/PCM. If it does not communicate,
troubleshoot the DLC circuit (see page 11-204).
23. Jump the SCS line with the HDS, then turn the ignition switch to LOCK (0).
NOTE: This step must be done to protect the ECM/
PCMfromdamage.
24. Disconnect ECM/PCM connector B (44P).
25. Check for continuity between ECM/PCM connector terminal B42 and alternator 4P connector terminal
No. 3.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), 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 11-228).
Repair open in the wire between alternator 4P
connector terminal No. 3 and ECM/PCM connector
terminal B42.
Wire side of female terminals Terminal side of female terminals
Wire side of
female terminals
Does t he char gi ng sy st em i nd i cat or f l ash?
Does t he char gi ng sy st em i nd i cat or come on? Is there continuity?
08/08/21 14:10:11 61SNR030_040_0028
ProCarManuals.com
DYNOMITE -2009-

µÌ
Ï
Î
(#'


)
µ
µ µ
µ
Special Tools Required
YES
NO YES
NO
4-28
Charging System
Alternator and Regulator Circuit Troubleshooting
OTC3131
Alternator, Regulator, Battery & Starter tester OTC3131
Available through the Honda Canada Inc. Technical
Tools Department; FAX
866-398-8665/e-mail:
ch_technicaltools ch.honda.com
1. Make sure the battery connections are good and the battery is sufficiently charged.
2. Connect the alternator, regulator, battery & starter tester (OTC3131) to the battery as shown.
3. Start the engine. Hold the engine speed at 3,000 rpm with no load (in N or P (A/T model) or
neutral (M/T model)) until the radiator fan comes
on, then let it idle.
4. Do the CHARGING SYSTEM TEST.
Go to step 5.
If the voltage is less than 13.5 V, go to
alternator control circuit troubleshooting (see page
4-29). If the voltage is over 15.1 V and amperage is
less than 87.5 A, replace the alternator (see page
4-34) or repair the alternator (see page 4-38). 5. Check the diode condition on the display.
The diode is OK. Troubleshooting is
complete.
If the display indicates BAD, replace the
alternator (see page 4-34) or repair the alternator
(see page 4-38), then retest.
NOTE: If the display indicates N/A, the diode
pattern could not be diagnosed. Repeat the test
again. If test is complete, use multimeter to
perform further pinpoint testing, then retest.
Does the display indicate the voltage is within 13.5 15 .1 V t he amper age i s 87 .5 A or mor e? Does t he d i spl ay i nd i cat e GOOD?
08/08/21 14:10:11 61SNR030_040_0029
ProCarManuals.com
DYNOMITE -2009-



(#'


)
µ
µ µ
µ
YES
NO YES
NO
4-29
Alternator Control Circuit Troubleshooting
BATTERY
ALTERNATOR
4P CONNECTOR C (WHT/GRN) ALT C
(WHT/GRN)
ECM/PCM CONNECTOR B (44P)
1. Connect the Honda Diagnostic System (HDS) to the
data link connector (DLC) (see step 2 on page 11-3).
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle and the engine control module (ECM)/powertrain
control module (PCM). If it does not communicate,
troubleshoot the DLC circuit (see page 11- 204).
4. Check for DTCs (see page 11-3). If a DTC is present, diagnose and repair the cause before continuing
with this test.
5. Disconnect the alternator 4P connector.
6. Start the engine, and turn on the headlights to high beam.
7. Measure the voltage between alternator 4P connector terminal No. 2 and the positive terminal
of the battery.
Go to step 11.
Go to step 8.
8. Jump the SCS line with the HDS, then turn the ignition switch to LOCK (0).
NOTE: This step must be done to protect the ECM/
PCM from damage.
9. Disconnect ECM/PCM connector B (44P). 10. Check for continuity between ECM/PCM connector
terminal B41 and body ground.
Repair short to ground in the wire between
alternator 4P connector terminal No. 2 and ECM/
PCM connector terminal B41.
Update the ECM/PCM if it does not have the
latest software (see page 11-227), 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 11-228).
11. Jump the SCS line with the HDS, then turn the ignition switch to LOCK (0).
NOTE: This step must be done to protect the ECM/
PCMfromdamage.
12. Disconnect ECM/PCM connector B (44P).
(cont’d)
Wire side of
female terminals Terminal side of female terminals
Is t her e 1 V or l ess?
Is there continuity?
08/08/21 14:10:12 61SNR030_040_0030
ProCarManuals.com
DYNOMITE -2009-

Î
(#'


")
µ
µ
YES
NO
4-304-30 Charging System
Alternator Control Circuit
Troubleshooting (cont’d)
Drive Belt Inspection
C (WHT/GRN)
ALTERNATOR
4P CONNECTOR ALT C
(WHT/GRN)
ECM/PCM CONNECTOR B (44P)
A
B
13. Check for continuity between ECM/PCM connector terminal B41 and alternator 4P connector terminal
No. 2.
Replace the alternator (see page 4-34), or
repair the alternator (see page 4-38).
Repair open in the wire between alternator 4P
connector terminal No. 2 and ECM/PCM connector
terminal B41. 1. Inspect the belt for cracks or damage. If the belt is
cracked or damaged, replace it (see page 4-31).
2. Check the position of the auto-tensioner indicator (A) is within the standard range (B) as shown. If it is
out of the standard range, replace the drive belt
(see page 4-31).
Wire side of
female terminals
Terminal side of female terminals
Is there continuity?
08/08/21 14:10:12 61SNR030_040_0031
ProCarManuals.com
DYNOMITE -2009-


(#'

 )

(#'



 )
Removal
4-344-34 Charging System
Idler Pulley Replacement
Alternator Removal and Installation
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)
AB
C
A
C
C C
1. Remove the drive belt (see page 4-31).
2. Remove the idler pulley.
3. Install the idler pulley in the reverse order of
removal. 1. Do the battery terminal disconnection procedure
(see page 22-68).
2. Remove the drive belt (see page 4-31).
3. Remove the front grille cover (see page 20-163).
4. Disconnect the fan motor connectors (A) and the hood switch connector (B), then remove the
harnessclamps(C).
08/08/21 14:10:14 61SNR030_040_0035
ProCarManuals.com
DYNOMITE -2009-

Î
Î

4-35
D
C
A
C B
B
C
A AB
C
5. Disconnect the reservoir hose (A), and remove the radiator cap base mounting bolts (B), the radiator
upper brackets (C) and the bolts (D).
6. Remove the A/C condenser bracket mounting bolts (A) and the bulkhead mounting bolts (B), then
remove the bulkhead (C). 7. Remove the three bolts securing the alternator.
8. Disconnect the alternator connector (A), and the
positive alternator cable (B) and remove the
harness clamp (C), then remove the alternator.
(cont’d)
08/08/21 14:10:15 61SNR030_040_0036
ProCarManuals.com
DYNOMITE -2009-


Î Î
Î
Installation
4-36Charging System
Alternator Removal and Installation (cont’d)
A
B
C 6x1.0mm
8 N·m (0.8 kgf·m,
6lbf·ft)
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft) 8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft) A
B
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft)
C
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft) A
D
A
C
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft)
B
6x1.0mm
10 N·m (1.0 kgf·m, 7.2 lbf·ft)
1. Install the alternator, then connect the alternator
connector (A) and the positive alternator cable (B)
and install the harness clamp (C). Make sure the
crimped side of the ring terminal faces away from
the alternator when you connect it.
2. Tighten the three bolts securing the alternator. 3. Install the bulkhead (A), then install the bulkhead
mounting bolts (B) and the A/C condenser bracket
mounting bolts (C).
4. Apply body paint to the bulkhead mounting bolts.
5. Install the radiator upper brackets (A), the radiator cap base mounting bolts (B), and the bolts (C), and
connect the reservoir hose (D).
08/08/21 14:10:16 61SNR030_040_0037
ProCarManuals.com
DYNOMITE -2009-

Î
(#'



!)
Exploded View
4-38Charging System
Alternator Overhaul
ROTOR
FRONT BEARING
RETAINERFRONT BEARING
DRIVE-END
HOUSING
PULLEYPULLEY
LOCKNUT
TERMINAL
INSULATOR BRUSH HOLDER
ASSEMBLY REAR HOUSING
ASSEMBLY
END COVER WASHER
08/08/21 14:10:17 61SNR030_040_0039
ProCarManuals.com
DYNOMITE -2009-