tach ACURA CSX 2006 Service Repair Manual

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ItemMeasurement Qualification Specification
2-20Design Specifications
DIMENSIONS Overall length
4.544 mm (178.9 in.)
Overall width 1,752 mm (69.0 in.)
Overall height 1,435 mm (56.5 in.)
Wheelbase 2,700 mm (106.3 in.)
Track Front1,499 mm (59.0 in.)
Rear 1,528 mm (60.2 in.)
Ground clearance 145 mm (5.7 in.)
Seating capacity Five (5)
WEIGHT Gross Vehicle Weight Rating
(GVWR) See the certification label attached to the driver’s doorjamb
ENGINE Type Water cooled, 4-stroke DOHC i-VTEC engine
Cylinder arrangement Inline 4-cylinder, transverse
Boreandstroke 86x86mm(3.39x3.39in.)
Displacement 1,998 cm (122 cu in.)
Compression ratio K20Z29.6
K20Z3 11.0
Valve train Chain drive, DOHC i-VTEC 4 valves per cylinder
Lubrication system Forced, wet sump, with trochoid pump
Fuel required K20Z2Regular UNLEADED gasoline 87 Pump Octane Number or
higher
K20Z3 Premium UNLEADED gasoline 91 Pump Octane Number or
higher
STARTER Type Gear Reduction
Nominal output 1.6 kW
Nominal voltage 12 V
Hour rating 30 seconds
Direction of rotation Clockwise as viewed from drive end
CLUTCH Type Single plate dry, diaphragm spring
Clutch friction material surface area 174 cm (27 sq in.)
3
2
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%)Ref. No. Tool Number Description Qty
4-2
Engine Electrical
Special Tools
07746-0010300
Attachment, 42 x 47 mm 1
07749-0010000 Driver 1
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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
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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)
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µ
µ
µ
µ
µ
µ
µ
µ µ
µ
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
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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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
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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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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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4-43
Cruise Control
Component Location Index
CLUTCH PEDAL POSITION SWITCH (M/T model)
BRAKE PEDAL POSITION SWITCHCRUISE CONTROL
COMBINATION SWITCHCRUISE MAIN INDICATOR
(In the gauge control module (tach))
CRUISE CONTROL INDICATOR
(In the gauge control module (tach))
TRANSMISSION RANGE SWITCH (A/T model)
ENGINE CONTROL MODULE (ECM)/
POWERTRAIN CONTROL MODULE (PCM)
Test, page 4-50
Clutch Pedal Adjustment, page 12-8
Test, page 22-181
Pedal Height Adjustment, page 19-6Test/Replacement, page 4-49
Test, page 14-265
Replacement, page 14-267
Cruise Control Input Test, page 4-47
08/08/21 14:10:48 61SNR030_040_0044
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Symptom Diagnostic procedure Also check for
4-44
Cruise Control
Symptom Troubleshooting Index




Cruise control cannot be
set
1.
2.
3.
4.Check for PGM-FI DTCs (see page 11-3).
Check the No. 3 (10 A) fuse in the under-dash fuse/relay
box.
Do the cruise control combination switch test (see page
4-49).
Do the cruise control input test (see page 4-47). Poor ground G101 (A/T
model) or G401 (M/T
model)
Cruise control can be set,
butthecruisemain
indicator does not come
on 1.
2.
3.Check for PGM-FI DTCs (see page 11-3).
Do the gauge control module self-diagnostic function
procedure (see page 22-241).
Do the cruise control input test (see page 4-47).
Test the cruise control main switch signal input. Faulty gauge control
module (tach)
Cruise control can be set,
but the cruise control
indicator does not come
on 1.
2.
3.Check for PGM-FI DTCs (see page 11-3).
Do the gauge control module self-diagnostic function
procedure (see page 22-241).
Do the cruise control input test (see page 4-47).
Test the cruise control indicator signal input. Faulty gauge control
module (tach)
Vehicle does not
accelerate accordingly
when the resume/accel
button is pressed 1.
2.
3.Check for PGM-FI DTCs (see page 11-3).
Do the cruise control combination switch test (see page
4-49).
Do the cruise control input test (see page 4-47).
Test the cruise control resume/accel switch signal input. Open circuit, loose or
disconnected terminal:
ORN
Set speed does not
cancel when the brake
pedal is pressed 1.
2.
3.Check for PGM-FI DTCs (see page 11-3).
Do the brake pedal position switch test (see page
22-181).
Do the cruise control input test (see page 4-47).
Test the brake pedal position switch signal input. Short to power on
the BRN wire
Faulty brake pedal
position switch
Set speed does not
cancel (engine rpm stays
high) when the clutch
pedal is pressed (M/T
model) 1.
2.
3.
Check for PGM-FI DTCs (see page 11-3).
Do the clutch pedal position switch test (see page 4-50).
Do the cruise control input test (see page 4-47).
Test the clutch pedal position switch signal input. Short to ground in
the LT BLU wire
Faulty clutch pedal
position switch
Set speed does not
cancel when the cruise
control main button is
pressed 1.
2.
3.Check for PGM-FI DTCs (see page 11-3).
Do the cruise control combination switch test (see page
4-49).
Do the cruise control input test (see page 4-47).
Test the cruise control main switch signal input. Short to power on the
YEL wire
Set speed does not
cancel when the cancel
button is pressed 1.
2.
3.Check for PGM-FI DTCs (see page 11-3).
Do the cruise control combination switch test (see page
4-49).
Do the cruise control input test (see page 4-47).
Test the cruise control cancel switch signal input. Open circuit, loose or
disconnected
terminals: LT GRN or
ORN
08/08/21 14:10:49 61SNR030_040_0045
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