alternator ACURA CSX 2006 Service Repair Manual

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Engine Electrical
Engine Assembly
Item Measurement QualificationStandard or New Service Limit
Item Measurement Qualification Standard or New
2-2Standards and Service Limits
Ignition coil Rated voltage
12 V
Firingorder 1342
Spark plug Type (K20Z2) DENSO: SKJ20DR-M11
Type (K20Z3) DENSO: SK22PR-M11S
Gap 1.0 1.1 mm (0.039 0.043 in.)
Ignition timing At idle Check the mark M/T (in neutral),
A/T (in N or P)82°BTDC
Drive belt Tension Auto-tensioner
Alternator Output At 13.5 V and
normal engine
temperature 105 A
Coil (rotor) resistance 20 °C (68 °F) 3.2 4.0
Slip ring O.D. 14.4 mm (0.57 in.)14.0 mm (0.55 in.)
Brush length 10.5 mm (0.41 in.)1.5 mm (0.06 in.)
Brush spring tension 3.2 N (0.33 kgf, 0.7 lbf)
Starter Output 1.6 kW
Commutator mica depth 0.40 0.50 mm (0.016 0.020 in.) 0.15 mm (0.006 in.)
Commutator runout 0.02 mm (0.0008 in.) max.0.05 mm (0.002 in.)
Commutator O.D. 28.0 28.1 mm (1.102 1.106 in.) 27.5 mm (1.083 in.)
Brush length 11.1 11.5 mm (0.44 0.45 in.)4.3 mm (0.17 in.)
Compression Pressure Check the engine with the starter
cranking Minimum 930 kPa (9.5 kgf/cm , 135 psi)
Maximum
variation
200 kPa (2.0 kgf/cm , 28 psi)
2
2
red
08/08/21 14:07:14 61SNR030_020_0002
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Engine Electrical
Engine Electrical
Starting System
Ignition System
Charging SystemCruise Control
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Special Tools . 4-2
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Component Location Index . 4-3
Symptom Troubleshooting
Index . 4-4
Circuit Diagram . 4-5
Starter System Circuit Troubleshooting . 4-6
Clutch Interlock Switch Test . 4-8
Starter Performance Test . 4-9
Starter Removal and Installation . 4-10
Starter Overhaul . 4-13
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Component Location Index . 4-18
Circuit Diagram
. 4-19
Ignition Timing Inspection . 4-20
Ignition Coil Removal/ Installation . 4-21
Spark Plug Inspection . 4-21
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Component Location Index . 4-23
Symptom Troubleshooting
Index . 4-24
Circuit Diagram . 4-25 ......
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Charging System Indicator
Circuit Troubleshooting . 4-26
Alternator and Regulator Circuit Troubleshooting . 4-28
Alternator Control Circuit Troubleshooting . 4-29
Drive Belt Inspection . 4-30
Drive Belt Replacement . 4-31
Drive Belt Auto-tensioner Inspection . 4-31
Drive Belt Auto-tensioner Removal/Installation . 4-32
Tensioner Pulley Replacement . 4-33
Idler Pulley Replacement . 4-34
Alternator Removal and Installation . 4-34
Alternator Overhaul . 4-38
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Component Location Index . 4-43
Symptom Troubleshooting
Index . 4-44
Circuit Diagram . 4-46
Cruise Control Input Test . 4-47
Cruise Control Combination Switch Test/Replacement . 4-49
Clutch Pedal Position Switch Test . 4-50
08/08/21 14:09:18 61SNR030_040_0002
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Special Tools Required
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4-6Starting System
Starter System 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
NOTE:  Air temperature must be within 15 38 °C (59 100 °F) during this procedure.
 After this inspection, you must reset the engine control module (ECM)/powertrain control module
(PCM). Otherwise, the ECM/PCM will continue to stop
the fuel injectors from operating.
 The battery must be in good condition and fully charged.
1. Connect the alternator, regulator, battery & starter tester (OTC3131) to the battery as shown.
NOTE: The probe is not used for battery testing.
2. Do the BATTERY TEST. ThebatteryisOK.Gotostep3.
If the display indicates BAD BATTERY, replace
the battery, then retest. If the display indicates
CHARGE & RETEST, charge the battery, then retest. 3. Connect the Honda Diagnostic System (HDS) to the
data link connector (DLC) (see step 2 on page 11-3).
4. Turn the ignition switch to ON (II).
5. 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).
6. Select ALL INJECTORS STOP in the PGM-FI INSPECTION menu with the HDS.
7. Set the parking brake, then with the shift lever in N or P (A/T model) or the clutch pedal pressed (M/T
model), turn the ignition switch to START (III).
The starting system is OK. Go to step 14.
Go to step 8.
8. Turn the ignition switch to LOCK (0).
9. Check the electrical connections at the battery, the negative battery cable to the body, the engine
ground cables, and the starter for looseness and
corrosion. Then try cranking the engine again.
Repairing the loose connection corrected the
problem. The starting system is OK. Go to step 14.
Based on the following symptoms, take the
appropriate action:
 If the starter does not crank the engine at all, go to step 10.
 If the starter cranks the engine erratically or too slowly,gotostep12.
 If the starter does not disengage from the flywheel ring gear (M/T model) or torque
converter ring gear (A/T model) when you
release the key, replace the starter, or remove
and disassemble it, and check for the following:
– Starter solenoid and switch malfunction
– Dirty drive gear or damaged overrunning clutch
Does the display indicate GOOD or GOOD, LOWCHARGE? Does t he st ar t er cr ank t he engi ne nor mal l y ?
Does t he st ar t er cr ank t he engi ne nor mal l y ?
08/08/21 14:09:22 61SNR030_040_0007
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M/T model
4-84-8 Starting System
Starter System Circuit
Troubleshooting (cont’d)
Clutch Interlock Switch Test
OTC3131 A
B
Terminal
Position
Clutch Interlock Switch
Clutch Interlock Switch 2
1
(PRESSED)
(RELEASED)
12. Do the STARTING TEST with the alternator, regulator battery & starter tester.
NOTE: The probe is used for starter testing.
Go to step 13.
Replace the starter, or remove and
disassemble it, and check for these problems:
 Draginthestarterarmature
 Short in the armature winding
 Excessive drag in the engine
 Open circuit in starter armature commutator segments
 Excessively worn starter brushes
 Open circuit in the starter brushes
 Dirty or damaged helical splines or drive gear
 Faulty overrunning clutch
13. Remove the starter, and inspect its drive gear and the flywheel ring gear (M/T model) or the torque
converter ring gear (A/T model) for damage.
Replace any damaged parts.
14. Select ECM/PCM reset (see page 11-4) in the PGM- FI INSPECTION menu to cancel ALL INJECTORS
STOP with the HDS. 1. Disconnect the clutch interlock switch 2P connector
(A).
2. Remove the clutch interlock switch (B).
3. Check for continuity between the terminals accordingtothetable.
 If the continuity is not as specified, replace the clutch interlock switch (see page 12-8).
 If OK, install the clutch interlock switch, and adjust the pedal height (see page 12-8).
Terminal side of
male terminals
Does the display indicate cranking voltage greatert han or equal t o 8.5 V and t he cur r ent d r aw l esst han or equal t o 380 A?
08/08/21 14:09:23 61SNR030_040_0009
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4-23
Charging System
Component Location Index
BATTERY
DRIVE BELT CHARGING SYSTEM INDICATOR
(In the gauge control module (tach))
UNDER-HOOD FUSE/RELAY BOX
(Has built-in ELECTRICAL LOAD
DETECTOR (ELD))
ALTERNATOR
DRIVE BELT AUTO-TENSIONER
IDLER PULLEY
Test, page 22-67
Inspection, page 4-30
Replacement, page 4-31 Removal and Installation, page 4-34
Overhaul, page 4-38
Inspection, page 4-31
Removal/Installation, page 4-32
Tensioner Pulley Replacement,
page 4-33
Replacement,
page 4-34
08/08/21 14:10:10 61SNR030_040_0024
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Symptom Diagnostic procedure Also check for
4-24
Charging System
Symptom Troubleshooting Index
Charging system
indicator does not come
on with the ignition
switch in ON (II)
Troubleshoot the charging system indicator circuit
(see page 4-26).
Charging system
indicator stays on 1.
2.
3.
4.Troubleshoot the charging system indicator circuit
(see page 4-26).
Check for a broken drive belt (see page 4-30).
Check the drive belt auto-tensioner (see page 4-31).
Check for PGM-FI DTCs (see page 11-3).
Battery discharged 1. 2.
3.
4.
5.
6.Check for a poor connection at the battery terminal.
Check for a broken drive belt (see page 4-30).
Test the battery (see page 22-67).
Troubleshoot the alternator and regulator circuit
(see page 4-28).
Check the drive belt auto-tensioner (see page 4-31).
Check for excessive parasitic electrical current draw
with the ignition switch to LOCK (0), and the key
removed. The multiplex control unit may take up to 10
minutes to turn off (sleep mode) for same models.
Battery overcharged 1. 2.Test the battery (see page 22-67).
Troubleshoot the alternator and regulator circuit
(see page 4-28).
08/08/21 14:10:10 61SNR030_040_0025
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4-25
Circuit Diagram
6
3
191 F5
17 D2
A3
A2 H1
ELD
CANL
CANH
ALTF ALTC ALTL
5V
ALTERNATOR DRIVER
YEL
FR L C IG BRN
ELD
A23 GAUGE CONTROL MODULE (TACH)
IGNITION SWITCH
BATIG1
B43 B42 B41 A37
A36 RED
WHT CPU
YEL
1
BLK/YEL
No. 2 (50 A)
BLK
RECTIFIER
BATTERY
VOLTAGE REGULATOR2
3
4
B
BLK
G301
UNDER-HOOD FUSE/RELAY BOX
No. 1 (100 A)
ORN
WHT/RED WHT/GRNWHT/BLU UNDER-DASH
FUSE/RELAY BOX
CHARGING
SYSTEM
INDICATOR
IG1 HOT in ON (II)
and START (III)
A1
ECM/PCM BLU
Q9
WHT
22
17C101
CANH
CANL
YEL
No. 10
(7.5 A)
No. 3
(10 A)
08/08/21 14:10:10 61SNR030_040_0026
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4-26Charging System
Charging System Indicator Circuit Troubleshooting
ALT L
(WHT/BLU)
ECM/PCM CONNECTOR B (44P)
NOTE: Check for stored DTCs in the PGM-FI before
troubleshooting the charging system indicator.
1. Turn the ignition switch to ON (II).
Go to step 2.
Go to step 14.
2. 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 4-28).
Go to step 3.
3. Do the gauge control module self-diagnostic function procedure (see page 22-241).
Go to step 4.
Replace the gauge control module (tach)
(see page 22-277).
4. Turn the ignition switch to LOCK (0).
5. Disconnect the alternator 4P connector.
6. Turn the ignition switch to ON (II).
Replace the alternator (see page 4-34), or
repair the alternator (see page 4-38).
Go to step 7. 7. Turn the ignition switch to LOCK (0).
8. Connect the Honda Diagnostic System (HDS) to the
data link connector (DLC) (see step 2 on page 11-3).
9. Turn the ignition switch to ON (II).
10. 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).
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).
13. Check for continuity between ECM/PCM connector terminal B42 and body ground.
Repair short to ground in the wire between
alternator 4P connector terminal No. 3 and ECM/
PCM connector terminal B42.
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).
Terminal side of female terminals
Does t he char gi ng sy st em i nd i cat or come on?
Does t he char gi ng sy st em i nd i cat or go of f ?
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 go of f ? Is there continuity?
08/08/21 14:10:11 61SNR030_040_0027
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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
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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
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