2006 ACURA CSX check engine



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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-

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Special Tools Required
Special Tools Required
4-314-31
Drive Belt ReplacementDrive Belt Auto-tensioner
Inspection
YA9317
A B
A
YA9317
Belt tension release tool Snap-on YA9317 or equivalent,
commercially available
1. Move the auto-tensioner (A) using the belt tension release tool to relieve tension from the drive belt
(B), then remove the drive belt.
2. Install the new drive belt in the reverse order of removal. Belt tension release tool Snap-on YA9317 or equivalent,
commercially available
1. Turn the ignition switch to ON (II), and make sure the A/C switch is OFF, then turn the ignition switch
to LOCK (0).
2. Check the position of the auto-tensioner indicator’s pointer (A). Start the engine then check the position
again with the engine idling. If the position of the
indicator moves or fluctuates very much, replace
the auto-tensioner (see page 4-32).
3. Check for abnormal noise from the tensioner pulley. If you hear abnormal noise, replace the tensioner
pulley(seepage4-33).
4. Remove the drive belt (see page 4-31).
5. Move the auto-tensioner within its limit using the belt tension release tool in the direction shown.
Check that the tensioner moves smoothly and
without any abnormal noise. If the tensioner does
not move smoothly, or you hear abnormal noise,
replace the auto-tensioner (see page 4-32).
(cont’d)
08/08/21 14:10:13 61SNR030_040_0032
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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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)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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5-12Engine Assembly
Engine Removal (cont’d)
64. Check that the engine/transmission is completely
free of vacuum hoses, fuel and coolant hoses, and
electrical wiring.
65. Slowly lower the engine/transmission about 150 mm (6 in.). Check once again that all hoses and
electrical wiring are disconnected and free from the
engine/transmission, then lower it all the way.
66. Disconnect the chain hoist from the engine/ transmission.
67. Raise the vehicle on the lift, then remove the engine/transmission from under the vehicle.
08/08/21 14:20:28 61SNR030_050_0012
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5-23
B
A
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft) A
B A
B
C
6x1.0mm
10 N·m
(1.0 kgf·m, 7.2 lbf·ft)
C
56. Install the ECM/PCM (A), then install the ECM/PCM
cover (B).
57. Connect the battery cables (A) to the under-hood fuse/relay box.
58. Install the harness clamp (B). 59. Install the pipe (A).
60. Connect the connector (B), and install the harness
clamps (C).
61. Install the under cowl-panel (see step 4 on page 20-164).
62. Install the air cleaner assembly (see page 11-345).
63. Install the front wheels.
64. Do the battery installation procedure (see page 22-69).
65. Inspect for fuel leaks. Turn the ignition switch to ON (II) (do not operate the starter) so 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.
66. Refill the engine with engine oil (see step 4 on page 8-10).
(cont’d)
08/08/21 14:21:01 61SNR030_050_0023
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 M/T model
A/T model
5-245-24
Engine Assembly
Engine Installation (cont’d)
Side Engine Mount Replacement
67. Refill the transmission with fluid:
 Manual transmission (see step 3 on page 13-5)
 Automatic transmission (see step 3 on page14-232)
68. A/T model: Move the shift lever to each gear, and verify that the A/T gear position indicator follows
the transmission range switch.
69. M/T model: Check that the transmission shifts into gear smoothly.
70. 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).
71. Do the ECM/PCM reset procedure (see page 11-4).
72. Do the crankshaft position (CKP) pattern clear/CKP pattern learn procedure (see page 11-4).
73. Inspect the idle speed (see page 11-309).
74. Inspect the ignition timing (see page 4-20).
75. Check the wheel alignment (see page 18-5). 1. Support the engine with a jack and wood block
under the oil pan.
2. Remove the upper torque rod.
Replace.
Replace.
Replace.
Replace.
08/08/21 14:21:01 61SNR030_050_0024
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DYNOMITE -2009-



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 M/T model
A/T model
5-245-24
Engine Assembly
Engine Installation (cont’d)
Side Engine Mount Replacement
67. Refill the transmission with fluid:
 Manual transmission (see step 3 on page 13-5)
 Automatic transmission (see step 3 on page14-232)
68. A/T model: Move the shift lever to each gear, and verify that the A/T gear position indicator follows
the transmission range switch.
69. M/T model: Check that the transmission shifts into gear smoothly.
70. 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).
71. Do the ECM/PCM reset procedure (see page 11-4).
72. Do the crankshaft position (CKP) pattern clear/CKP pattern learn procedure (see page 11-4).
73. Inspect the idle speed (see page 11-309).
74. Inspect the ignition timing (see page 4-20).
75. Check the wheel alignment (see page 18-5). 1. Support the engine with a jack and wood block
under the oil pan.
2. Remove the upper torque rod.
Replace.
Replace.
Replace.
Replace.
08/08/21 14:21:01 61SNR030_050_0024
ProCarManuals.com
DYNOMITE -2009-