2006 ACURA CSX alternator




Special Tools Required
4-39
B
A
 Driver 07749-0010000
 Attachment, 42 x 47 mm 07746-0010300
NOTE: Refer to the Exploded View as needed during
this procedure.1. Test the alternator and regulator before you remove them (see page 4-28).
2. Remove the alternator (see page 4-34).
3. If the front bearing needs replacing, remove the pulley locknut with a 10 mm wrench (A) and a
22 mm wrench (B). If necessary, use an impact
wrench.
4. Remove the harness stay and the three flange nuts from the alternator. 5. Remove the end cover.
6. Remove the brush holder assembly.
(cont’d)
08/08/21 14:10:18 61SNR030_040_0040
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4-40Charging System
Alternator Overhaul (cont’d)
B
A
7. Remove the four through bolts, then remove the
rear housing assembly (A), and washer (B).
8. If you are not replacing the front bearing, go to step 13. Remove the rotor from the drive-end
housing. 9. Inspect the rotor shaft for scoring, and inspect the
bearing journal surface in the drive-end housing for
seizure marks.
 If the rotor is damaged, replace the rotor assembly.
 If the rotor is OK, go to step 10.
10. Remove the front bearing retainer.
11. Drive out the front bearing with a brass drift and a hammer.
08/08/21 14:10:45 61SNR030_040_0041
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Alternator Brush Inspection Alternator Brush Length
Standard (New): 10.5 mm (0.41 in.)
Service Limit: 1.5 mm (0.06 in.) Rotor Slip Ring Test
4-41
07749-0010000
07746-0010300
B AA
BC
12. Install a new front bearing in the drive-end housing
with a hammer, the driver, and the attachment,
42x47mm.
13. Measure the length of both brushes (A) with a vernier caliper (B).
 If either brush is shorter than the service limit, replace the brush holder assembly.
 If brush length is OK, go to step 14. 14. Check for continuity between the slip rings (A).
 If there is continuity, go to step 15.
 If there is no continuity, replace the rotorassembly.
15. Check for continuity between each slip ring and the rotor (B) and the rotor shaft (C).
 If there is no continuity, replace the rear housing assembly, and go to step 16.
 If there is continuity, replace the rotor assembly.
(cont’d)
08/08/21 14:10:45 61SNR030_040_0042
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DYNOMITE -2009-




Alternator Reassembly
4-42Charging System
Alternator Overhaul (cont’d)
A
B
16. If you removed the pulley, put the rotor in the drive- end housing, then tighten its locknut to 110 N·m
(11.2 kgf·m, 81.0 lbf·ft).
17. Remove any grease or any oil from the slip rings.
18. Put the rear housing assembly and the drive-end housing/rotor assembly together, tighten the four
through bolts.
19. Push the brushes (A) in, then insert a pin or drill bit (B) (about 1.6 mm (0.06 in.) diameter) to hold them
there.
20. Install the brush holder assembly, and pull out the pin or drill bit.
21. Install the end cover.
22. After assembling the alternator, turn the pulley by hand to make sure the rotor turns smoothly and
without noise.
23. Install the alternator (see page 4-36) and the drive belt (see page 4-31).
08/08/21 14:10:46 61SNR030_040_0043
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10-11
Water Passage Replacement
C D
E B A B
A
1. Drain the engine coolant (see page 10-8).
2. Remove the alternator (see page 4-34).
3. Remove the A/C condenser fan shroud assembly.
4. Remove the A/C compressor without disconnecting
the A/C hoses (see step 40 on page 5-7).
5. Remove the intake manifold:
 K20Z2 engine (see page 9-3)
 K20Z3 engine (see page 9-7)
6. Remove the bolt (A) securing the connecting pipe.
7. Disconnect the lower radiator hose (B), the connecting pipe (C), and the water bypass hose (D),
and remove the harness clamp (E). 8. Disconnect the positive crankcase ventilation (PCV)
hose (A), then remove the water passage (B).
9. Remove the thermostat housing.
10. Remove the water pump:  K20Z2 engine (see page 10-6)
 K20Z3 engine (see page 10-7)
(cont’d)
08/08/21 14:40:00 61SNR030_100_0011
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Removal - K20Z2 engine
10-1310-13
EGR Passage Removal and
Installation
A
B
A B
C
20. Install the intake manifold:
 K20Z2 engine (see page 9-4)
 K20Z3 engine (see page 9-9)
21. Install the A/C compressor (see step 28 on page 5-19).
22. Install the A/C condenser fan shroud assembly.
23. Install the alternator (see page 4-36).
24. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater
valve open (see step 6 on page 10-8).
25. Clean up any spilled engine coolant. 1. Drain the engine coolant (see page 10-8).
2. Remove the air cleaner assembly (see page 11-345).
3. Remove the harness holder (A) from the bracket,
then remove the harness holder bracket (B).
4. Disconnect the upper radiator hose (A), the heater hose (B), and the water bypass hose (C).
(cont’d)
08/08/21 14:40:01 61SNR030_100_0013
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Removal - K20Z2 engine
10-1310-13
EGR Passage Removal and
Installation
A
B
A B
C
20. Install the intake manifold:
 K20Z2 engine (see page 9-4)
 K20Z3 engine (see page 9-9)
21. Install the A/C compressor (see step 28 on page 5-19).
22. Install the A/C condenser fan shroud assembly.
23. Install the alternator (see page 4-36).
24. Refill the radiator with engine coolant, and bleed the air from the cooling system with the heater
valve open (see step 6 on page 10-8).
25. Clean up any spilled engine coolant. 1. Drain the engine coolant (see page 10-8).
2. Remove the air cleaner assembly (see page 11-345).
3. Remove the harness holder (A) from the bracket,
then remove the harness holder bracket (B).
4. Disconnect the upper radiator hose (A), the heater hose (B), and the water bypass hose (C).
(cont’d)
08/08/21 14:40:01 61SNR030_100_0013
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DYNOMITE -2009-

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Fuel and Emissions
Fuel and Emissions Systems
PGM-FI System
Electronic Throttle Control System
VTEC/VTC
Idle Control SystemFuel Supply System
Intake Air System
Catalytic Converter System
EGR System
PCV System
EVAP System..................................................
........
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........
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....................................... .......................
Special Tools . 11-2
General Troubleshooting Information . 11-3
DTC Troubleshooting Index . 11-9
Symptom Troubleshooting Index . 11-13
System Description . 11-15
How to Set Readiness Codes . 11-69
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Component Location Index . 11-72
DTC Troubleshooting . 11-74
F-CAN Circuit Troubleshooting . 11-191
MIL Circuit Troubleshooting . 11-203
DLC Circuit Troubleshooting . 11-204
Injector Replacement . 11-219
A/F Sensor Replacement . 11-221
Secondary HO2S Replacement . 11-221
CMP Sensor B Replacement . 11-222
CKP Sensor Replacement . 11-222
Output Shaft (Countershaft) Speed Sensor
Replacement . 11-223
Knock Sensor Replacement . 11-223
MAP Sensor Replacement . 11-224
MAF Sensor/IAT Sensor Replacement . 11-224
ECT Sensor 1 Replacement . 11-225
ECT Sensor 2 Replacement . 11-225
ELD Replacement . 11-226
ECM/PCM Update . 11-227
ECM/PCM Replacement . 11-228
..........................
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.................................... ......................
.................................
Component Location Index . 11-231
DTC Troubleshooting . 11-232
APP Sensor Signal Inspection . 11-268
Accelerator Pedal Module
Removal/Installation . 11-269
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Component Location Index
. 11-273
DTC Troubleshooting . 11-274
VTC Oil Control Solenoid Valve Removal/Test/Installation . 11-294
CMP Sensor A Replacement . 11-295
Rocker Arm Oil Control Valve Removal/Installation . 11-296
Rocker Arm Oil Pressure Switch Removal/Installation . 11-296
..........................
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.................................... .............
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Component Location Index
. 11-297
DTC Troubleshooting . 11-298
A/C Signal Circuit Troubleshooting . 11-306
Alternator FR Signal Circuit Troubleshooting . 11-307
Brake Pedal Position Switch Signal Circuit Troubleshooting . 11-308
Idle Speed Inspection . 11-309
ECM/PCM Idle Learn Procedure . 11-310 ..........................
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Component Location Index
. 11-311
DTC Troubleshooting . 11-313
Fuel Pump Circuit Troubleshooting . 11-318
Fuel Pressure Relieving . 11-322
Fuel Pressure Test . 11-325
Fuel Tank Draining . 11-325
Fuel Line Inspection . 11-326
Fuel Line/Quick-Connect Fitting Precautions . 11-328
Fuel Line/Quick-Connect Fitting Removal . 11-329
Fuel Line/Quick-Connect Fitting Installation . 11-331
Fuel Tank Unit Removal and Installation . 11-334
Fuel Pressure Regulator Replacement . 11-337
Fuel Filter Replacement . 11-337
Fuel Pump/Fuel Gauge Sending Unit Replacement . 11-338
Fuel Tank Replacement . 11-339
Fuel Gauge Sending Unit Test . 11-340
Low Fuel Indicator Test . 11-341
..........................
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............. ....
.............................................. ..........................
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.............................................................. .................
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............. ....
..............................................
Component Location Index
. 11-342
Throttle Body Test . 11-343
Throttle Body Cleaning . 11-344
Intake Air Bypass Control Thermal Valve Test . 11-344
Air Cleaner Removal/Installation . 11-345
Air Cleaner Element Inspection/Replacement . 11-346
Intake Air Resonator Removal/Installation . 11-346
Throttle Body Removal/Installation . 11-348
Throttle Body Disassembly/Reassembly . 11-350
Intake Air Bypass Control Thermal Valve Replacement . 11-351
..........................
.................................... ...
..........................
.................................... ...
Component Location Index
. 11-352
DTC Troubleshooting . 11-353
Catalytic Converter Removal/Installation . 11-355
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Component Location Index
. 11-356
DTC Troubleshooting . 11-357
EGR Valve Replacement . 11-370
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Component Location Index
. 11-371
PCV Valve Inspection . 11-372
PCV Valve Replacement . 11-373
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Component Location Index
. 11-374
DTC Troubleshooting . 11-375
Fuel Cap Warning Message System Troubleshooting . 11-405
EVAP Canister Replacement . 11-407
FTP Sensor Replacement . 11-408
EVAP Canister Vent Shut Valve Replacement . 11-409
EVAP Canister Purge Valve Replacement . 11-409
08/08/21 14:12:30 61SNR030_110_0001
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DYNOMITE -2009-