brake ACURA CSX 2006 Service User Guide

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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
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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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SymptomDiagnostic procedure Also check for
4-45




Set speed does not
resume when the
resume/accel button is
pressed (with the cruise
control main button
pressed on, and set
speed temporarily
canceled by pressing the
brake pedal)
1.
2.
3.
4.
Check for PGM-FI DTCs (see page 11-3).
Check the brake pedal position switch adjustment
(see page 19-6).
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.
Test the brake pedal position switch signal input. Open circuit, loose or
disconnected
terminal: ORN
Faulty brake pedal
position switch
Set speed does not
resume when the
resume/accel button is
pressed (with the cruise
control main button
pressed on, and set
speed temporarily
canceled by pressing the
clutch pedal) (M/T model) 1.
2.
3.
4.
Check for PGM-FI DTCs (see page 11-3).
Check the clutch pedal position switch adjustment
(see page 12-8).
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.
Test the clutch pedal position switch signal input. Open circuit, loose or
disconnected
terminal: ORN
Faulty clutch pedal
position switch
With the ignition switch
in ON (II), and the lighting
switch turned on, the
cruise control
combination switch
illumination does not
come on Check the cruise control combination switch (see page 4-49).
08/08/21 14:10:49 61SNR030_040_0046
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´
µ
4-46 Cruise Control
Circuit Diagram
(A/T model) 764 5 12
G504 11
3
LIGHTS
CRUISE CONTROL INDICATOR
C21
C20
C12
12 V
5V
C4
G401 3 2 C1
A20
3
2 4
1 (50 A) No. 2
No. 19 (15 A) No. 21 (15 A)
A8
A6
C43 B28 GRY
ORN
ECM/PCM A37
A36
BAT
IG1
A39
A40
C39
C3
A41
THROTTLE BODY
TP SENSOR
No. 3
(10 A)
CRUISE MAIN INDICATOR
DRIVER
GAUGE CONTROL MODULE (TACH)
No. 12
(15 A)
UNDER-HOOD FUSE/RELAY BOX
BATTERY
No. 1 (100 A)
CPU
IG1 HOT in
ON (II) and
START (III)
CABLE
REEL
CAN-
CEL RESUME/
ACCEL
CABLE
REEL
THROTTLE
ACTUATOR
BRAKE
PEDAL
POSITION
SWITCH MULTIPLEX
INTEGRATED
CONTROL UNIT
TRANSMISSION
RANGE SWITCH SET/
DECEL
CRUISE
CONTROL
MAIN
CRUISE CONTROL
DIMMING CIRCUIT
PGM-FI
MAIN
RELAY 1
ETCS
CONTROL
RELAY
UNDER-DASH
FUSE/RELAY
BOX HORN
SWITCH
CRUISE CONTROL
COMBINATION SWITCH
IGNITION
SWITCH
IG1ETCS
ETCSRLY
IGP
MRLY CANL
CANH
BKSWNC
BKSW
TPSB
TPSA
VCC3
ETCSM
NC ATPFWD SG3
ETCSM
CRMTCLS
D8
H1 F9 F6 F5 E1
3
6
19101114
OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR CLUTCH
PEDAL
POSITION
SWITCH No. 14 (7.5 A) FUSE
(UNDER-DASH
FUSE/RELAY BOX)
YEL
WHT BLU
YEL
LT BLU
BLK LT GRN ORN RED
LT GRN BRN ORN GRN WHT WHT
YEL RED
5V
BLU/WHT LT BLU BLU/YEL BLU
BLU/RED
GRN/YEL GRN RED/BLK RED/BLU
BLK
WHT
D2
F5 42 31
32
41 1
10
679 8 2
21 18 C101
(M/T model) CANL CANH
19
08/08/21 14:10:50 61SNR030_040_0047
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)Signal to be
tested Test condition Parameter: Desired
resultPossible cause if result is not obtained
4-47
Cruise Control Input Test
NOTE: Always make sure that you have the latest Honda Diagnostic System (HDS) software before doing the input
tests.
1. Connect the 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. Go to PGM-FI, and check for DTCs (see page 11-3).
5. Do the following tests while monitoring parameters in the PGM-FI DATA LIST with the HDS. NOTE: Intermittent failures are often caused by loose circuit connections. While monitoring cruise control inputs,
flex the circuit wires, and note if any of the test results change.

















Brake pedal
position
switch signal
Brake pedal pressed,
then released
CRUISE BRAKE SW
should indicate OFF
when the brake pedal is
pressed and ON when
the brake pedal is
released. Faulty brake pedal position switch
Blown No. 3 (10 A) fuse in the under-
dash fuse/relay box
An open in the wire between the ECM/
PCM and the brake pedal position switch
A wire shorted to ground between the
ECM/PCM and the brake pedal position
switch
Clutch pedal
position
switch signal
(M/T model) Clutch pedal pressed,
then released
SHIFT/CLUTCH SW
should indicate ON
when the clutch pedal
is pressed and OFF
when the clutch pedal
is released. Faulty clutch pedal position switch
An open in the wire between the ECM
and the clutch pedal position switch
A wire shorted to ground between the
ECM and the clutch pedal position
switch
Poor ground G401
Transmission
range switch
signal (A/T
model) Shift lever in D and S SHIFT/CLUTCH SW
should indicate ON in P,
R,andN,andOFFinD
and S. Faulty transmission range switch
An open in the wire between the PCM
and the transmission range switch
A wire shorted to ground between the
PCM and the transmission range switch
Poor ground G101
Cruise control
main switch
signal Cruise control main
switch pressed and
released CRUISE MASTER
(MAIN) SW should
indicate ON when the
cruise control main
buttonispressedand
OFF when the cruise
control main button is
released. Faulty cruise control combination switch
Faulty gauge control module (tach)
An open in the wire between the gauge
control module (tach) and the cruise
control combination switch
A wire shorted to ground between the
gauge control module (tach) and the
cruise control combination switch
Poor ground G504
(cont’d)
08/08/21 14:10:50 61SNR030_040_0048
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5-5
A
B
A
B
15. Disconnect the evaporative emission (EVAP)
canister hose (A) and the brake booster vacuum
hose (B).
16. Remove the quick-connect fitting cover (A), then disconnect the fuel feed hose (B) (see page 11-329).
17. M/T model: Remove the shift cables. Do not bend the cables excessively (see step 7 on page 13-8).
18. M/T model: Remove the clutch slave cylinder, and the clutch line bracket mounting bolt (see step 5 on
page 13-7). 19. M/T model: Remove the air cleaner bracket.
20. Remove the drive belt (see page 4-31).
21. Remove the idler pulley base (see step 2 on page
4-32).
22. Wait until the engine is cool, then carefully remove the radiator cap.
23. Raise the vehicle on the lift.
24. Remove the front wheels.
25. Remove the splash shield.
26. Loosen the drain plug in the radiator, and drain the engine coolant (see page 10-8).
(cont’d)
08/08/21 14:20:23 61SNR030_050_0005
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5-22Engine Assembly
Engine Installation (cont’d)
A
B
B A 6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft) 6x1.0mm
12 N·m (1.2 kgf·m, 8.7 lbf·ft)
B
C A
51. Connect the evaporative emission (EVAP) canisterhose (A) and the brake booster vacuum hose (B).
52. Install the engine control module (ECM)/powertrain control module (PCM) bracket (A), then install the
under-hood fuse/relay box (B) to the ECM/PCM
bracket. 53. K20Z3 engine: Install the engine cover.
54. Connect the ECM/PCM connectors (A) and the
engine wire harness connector (B).
55. Install the harness clamps (C).
08/08/21 14:21:00 61SNR030_050_0022
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6-386-38 Cylinder Head
Cylinder Head Cover Installation
(cont’d)
Cylinder Head Removal
B
C
A
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft) A
B
8. Install two bolts (A) securing the evaporativeemission (EVAP) canister purge valve bracket.
9. Connect the breather hose (B), and install the dipstick (C).
10. Connect the evaporative emission (EVAP) canister purge valve connector.
11. Install the four ignition coils (see page 4-21).
12. Install the engine cover. NOTE:
 Use fender covers to avoid damaging the painted surfaces.
 To avoid damaging the wire and terminals, unplug the wiring connectors carefully while holding the
connector portion.
 Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3),
and monitor the engine coolant temperature (ECT)
sensor 1. To avoid damaging the cylinder head, wait
until the engine coolant temperature drops below
38 °C (100 °F) before loosening the cylinder head
bolts.
 Mark all wiring and hoses to avoid misconnection. Also, be sure that they do not contact other wiring or
hoses, or interfere with other parts.
1. Relieve the fuel pressure (see page 11-322).
2. Drain the engine coolant (see page 10-8).
3. Remove the air cleaner assembly (see page 11-345).
4. Remove the drive belt (see page 4-31).
5. Remove the intake manifold:  K20Z2 engine (see page 9-3)
 K20Z3 engine (see page 9-7)
6. Remove the exhaust manifold (see page 9-11).
7. Disconnect the evaporative emission (EVAP) canister hose (A) and the brake booster vacuum
hose (B).
08/08/21 14:27:27 61SNR030_060_0038
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6-386-38 Cylinder Head
Cylinder Head Cover Installation
(cont’d)
Cylinder Head Removal
B
C
A
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft) A
B
8. Install two bolts (A) securing the evaporativeemission (EVAP) canister purge valve bracket.
9. Connect the breather hose (B), and install the dipstick (C).
10. Connect the evaporative emission (EVAP) canister purge valve connector.
11. Install the four ignition coils (see page 4-21).
12. Install the engine cover. NOTE:
 Use fender covers to avoid damaging the painted surfaces.
 To avoid damaging the wire and terminals, unplug the wiring connectors carefully while holding the
connector portion.
 Connect the Honda Diagnostic System (HDS) to the data link connector (DLC) (see step 2 on page 11-3),
and monitor the engine coolant temperature (ECT)
sensor 1. To avoid damaging the cylinder head, wait
until the engine coolant temperature drops below
38 °C (100 °F) before loosening the cylinder head
bolts.
 Mark all wiring and hoses to avoid misconnection. Also, be sure that they do not contact other wiring or
hoses, or interfere with other parts.
1. Relieve the fuel pressure (see page 11-322).
2. Drain the engine coolant (see page 10-8).
3. Remove the air cleaner assembly (see page 11-345).
4. Remove the drive belt (see page 4-31).
5. Remove the intake manifold:  K20Z2 engine (see page 9-3)
 K20Z3 engine (see page 9-7)
6. Remove the exhaust manifold (see page 9-11).
7. Disconnect the evaporative emission (EVAP) canister hose (A) and the brake booster vacuum
hose (B).
08/08/21 14:27:27 61SNR030_060_0038
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6-65
A
B6x1.0mm
12 N·m
(1.2 kgf·m, 8.7 lbf·ft)
B
A A
B
19. Connect the positive crankcase ventilation (PCV)hose (A) (K20Z2 engine) and install the ground
cable (B).
20. Connect the fuel feed hose (A) (see page 11-331), then install the quick-connect fitting cover (B). 21. Connect the evaporative emission (EVAP) canister
hose (A) and the brake booster vacuum hose (B).
22. Install the exhaust manifold (see page 9-11).
23. Install the intake manifold:  K20Z2 engine (see page 9-4)
 K20Z3 engine (see page 9-9)
24. Install the drive belt (see page 4-31).
25. Install the air cleaner assembly (see page 11-345).
26. After installation, check that all tubes, hoses and connectors are installed correctly.
27. Inspect for fuel leaks. Turn the ignition switch to ON (II) (do not operate the starter) so that the fuel
pump runs for about 2 seconds and pressurizes the
fuel line. Repeat this operation three times, then
check for fuel leakage at any point in the fuel line.
(cont’d)
08/08/21 14:28:44 61SNR030_060_0065
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