2006 ACURA CSX Radiator

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Special Tools Required
Pressure Fluid PressureStandard Service Limit
14-211
Pressure Test
A
A/T OIL PRESSURE
GAUGE SET
07406-0020401
A/TPRESSUREHOSE,
2,210 mm
07MAJ-PY4011A
(3 required) A/T PRESSURE
HOSE ADAPTER
07MAJ-PY40120
(3 required)
A
 A/T oil pressure gauge set 07406-0020401
 A/T pressure hose, 2,210 mm 07MAJ-PY4011A
 A/T pressure hose adapter 07MAJ-PY40120
NOTE:
 Disable the VSA by pressing the VSA OFF switch (if equipped).
 VSA DTC(s) may come on during the pressure test. If the VSA(s) come on, clear the DTC(s) with the HDS.
1. Make sure the transmission fluid is filled to the proper level (see page 14-231).
2. Raise the vehicle on a lift, or apply the parking brake, block rear wheels, and raise the front of the
vehicle. Make sure it is securely supported.
3. Remove the splash shield.
4. Allow the front wheels to rotate freely.
5. Connect the HDS to the DLC (A) located under the driver’s side of the dashboard.
6. Turn the ignition switch to ON (II). Make sure the HDS communicates with the PCM. If it does not, go
to the DLC circuit troubleshooting (see page
11-204). 7. Connect the A/T oil pressure gauge to the line
pressure inspection port (A). Do not allow dust or
other foreign particles to enter the ports while
connecting the gauges.
8. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
9. Measure the line pressure at the line pressure inspection port with the shift lever in P or N while
holding the engine speed at 2,000 rpm.
NOTE: Higher pressure may be indicated if
measurements are made in shift lever position
other than P or N.
Line 900 960 kPa (9.2 9.8 kgf/cm ,
130 140 psi) 850 kPa
(8.7 kgf/cm ,
120 psi)
10. Turn the engine off, then disconnect the A/T oil pressure gauge from the line pressure inspection
port.
11. Install the sealing bolt to the line pressure inspection port with a new sealing washer, and
tighten the bolt to 18 N·m (1.8 kgf·m, 13 lbf·ft). Do
not reuse the old sealing washer.
(cont’d)
22
08/08/21 14:46:42 61SNR030_140_0213
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DYNOMITE -2009-

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14-231
ATF Level Check
A
A
B
ATF
NOTE: Keep all foreign particles out of the transmission. 1. Park the vehicle on the level ground.
2. Warm up the engine to normal operating temperature (the radiator fan comes on), and turn
the engine off. Do not allow the engine to warm up
more than two cycles of the cooling fan.
NOTE: Check the ATF level within 60 90 seconds
after turning the engine off. Higher ATF level may
be indicated if the radiator fan comes on twice or
more.
3. Remove the ATF dipstick (yellow loop) (A), and wipe it with a clean cloth.
4. Insert the dipstick into the transmission.
5. Remove the dipstick and check the ATF level. It should be between the upper mark (A) and the
lower mark (B). 6. If the ATF level is below the lower mark, check for
fluid leaks at the transmission, the hoses, and the
line joints. If a problem is found, fix it before f illing
the transmission with ATF.
NOTE: If the vehicle is driven when the ATF level is
below the lower mark, one or more of these
symptoms may occur:  The transmission damage.
 The vehicle may not move in any gear.
 The vehicle may accelerates poorly, and flares when starting off in D, S, and R.
 Vibration when the engine is idling.
7. If the ATF level is above the upper mark, drain the
ATF to proper level (see step 3 on page 14-232).
NOTE: If the vehicle is driven when the ATF level is
above the upper mark, the vehicle may creep
forward while in N, or have problems shifting.
8. If necessary, fill the transmission with ATF through the dipstick hole to bring the fluid level to midway
between the upper mark and the lower mark of the
dipstick. Do not fill the fluid above the upper mark.
Always use genuine Acura ATF-Z1 automatic
transmission fluid (ATF). Using a non-Acura ATF
can affect shift quality.
9. Insert the dipstick back into the transmission with the letters ‘‘ATF’’ pointing toward the front of the
vehicle.
08/08/21 14:46:52 61SNR030_140_0233
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DYNOMITE -2009-

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Automatic Transmission Fluid Capacity:
2.9 L (3.1 US qt) at change
6.5 L (6.9 US qt) at overhaul
14-232 Automatic Transmission
ATF Replacement
A
18 x 1.5 mm
49 N·m
(5.0 kgf·m,
36 lbf·ft)
B
ATF
A
NOTE: Keep all foreign particles out of the transmission. 1. Park the vehicle on the level ground.
2. Warm up the engine to normal operating temperature (the radiator fan comes on), and turn
the engine off.
3. Remove the drain plug (A), and drain the automatic transmission fluid (ATF).
4. Reinstall the drain plug with a new sealing washer (B).
5. Refill the transmission with ATF into the dipstick hole to bring the fluid level between the upper
mark and the lower mark of the dipstick. Always
use Acura ATF-Z1 automatic transmission fluid
(ATF). Using a non-Acura ATF can affect shift
quality.
6. Check that the ATF level is between the upper mark
and the lower mark of the dipstick.
7. Insert the dipstick back into the transmission with the letters ‘‘ATF’’ pointing toward the front of the
vehicle. 8. If the maintenance minder required to replace the
ATF, reset the maintenance minder (see page 3-4),
and this procedure is complete. If the maintenance
minder did not require you to replace the ATF, go
to step 9.
9. Connect the HDS to the DLC (A) located under the driver’s side of the dashboard.
10. Turn the ignition switch to ON (II). Make sure the HDS communicates with the PCM. If it does not, go
to the DLC circuit troubleshooting (see page
11-204).
11. Select BODY ELECTRICAL with the HDS.
12. Select ADJUSTMENT in the GAUGES MENU with the HDS.
13. Select RESET in the MAINTENANCE MINDER MENU with the HDS.
14. Select RESETTING THE ATF with the HDS.
NOTE: If you changed the engine oil at the same
time with the ATF, select RESETTING THE ENGINE
OIL LIFE AND ATF with the HDS instead.
Replace.
08/08/21 14:46:53 61SNR030_140_0234
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DYNOMITE -2009-

14-252Automatic Transmission
Transmission Installation (cont’d)
54. Refill the transmission with ATF (see step 5 on page
14-232).
55. Install the battery tray, the battery base, and the resonator.
56. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
57. Install the front grille cover (see page 20-163).
58. Install the under-cowl lower panel and the cowl cover (see page 20-163).
59. Do the battery installation procedure (see page 22-69).
60. Install the front wheels.
61. Set the parking brake. Start the engine, and shift the transmission through all positions three times.
62. Check the shift lever operation, the A/T gear position indicator operation, and the shift cable
adjustment.
63. Check and adjust the front wheel alignment (see page 18-5).
64. Install the splash shield.
65. Start the engine with the shift lever in P or N, and warm it up to normal operating temperature (the
radiator fan comes on). Turn off the engine, and
check the ATF level (see page 14-231).
66. Road-test the vehicle (see page 14-208).
08/08/21 14:48:50 61SNR030_140_0254
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DYNOMITE -2009-





17-69
A
12x1.25mm
A
12x1.25mm A
14x1.5mm
A
B
27. Remove the front subframe middle mount bolt (A)
from the left side.
28. Remove the front subframe middle mount bolt (A) from the right side. 29. Remove the lower torque rod mounting bolt (A).
30. Remove the lower radiator hose (A) from the
radiator hose stay (B).
(cont’d)
Replace.Replace. Replace.
08/08/21 14:55:12 61SNR030_170_0070
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DYNOMITE -2009-




17-75
A
B
A
14x1.5mm
88 N·m
(9.0 kgf·m,
65 lbf·ft) A
12x1.25mm
64 N·m
(6.5 kgf·m,
47 lbf·ft)
A
12x1.25mm
64 N·m
(6.5 kgf·m,
47 lbf·ft)
15. Install the lower radiator hose (A) to the radiatorhosestay(B).
16. Install the new lower torque rod mounting bolt (A), and tighten to the specified torque. 17. Install the new front subframe middle mount bolt
(A) on the left side, and tighten it to the specified
torque.
18. Install the new front subframe middle mount bolt (A) on the right side, and tighten it to the specified
torque.
19. Lower the transmission jack supporting the front subframe.
(cont’d)
Replace. Replace.
Replace.
08/08/21 14:55:17 61SNR030_170_0076
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DYNOMITE -2009-

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) Component Inspections:Component Procedure Also check for
Brake pedal sinks/fades when braking
Brake System Test
19-4 Conventional Brake Components
Brake System Inspection and Test
Inspect the brake system components listed. Repair or replace any parts that are leaking or damaged.










Master Cylinder Look for damage or signs of fluid leakage at:
Reservoir tank, subreservoir or master
cylinder body.
Lines, reservoir tank hose and grommets,
and their joints.
Between master cylinder and booster. Bulging seal at reservoir cap. This is a
sign of fluid contamination.
Brake Hoses Look for damage or signs of fluid leakage at: Line joints and banjo bolt connections.
Hoses and lines, also inspect for twisting or
damage. Bulging, twisted, or bent lines.
Caliper Look for damage or signs of fluid leakage at: Piston seal.
Banjo bolt connections.
Bleed screw. Seized or sticking caliper pins.
ABS or VSA
Modulator-control
Unit Look for damage or signs of fluid leakage at:
Line joints.
Modulator-control unit.
1. Set the parking brake, and start the engine, then turn off the A/C. Allow the engine to warm up to normal operating temperature (radiator fan comes on twice).
2. Attach a 50 mm (2 in.) piece of masking tape along the bottom of the steering wheel, and draw a horizontal reference mark across it.
3. With the transmission in neutral (M/T) or P or N (A/T), press and hold the brake pedal lightly (about the same pressure needed to keep an A/T-equipped vehicle from creeping), then release the parking brake.
4. While still holding the brake pedal, hook the end of the tape measure behind the brake pedal, then pull the tape up to the steering wheel. Note the measurement between the brake pedal and the reference mark on the steering
wheel.
5. Apply steady pressure to the brake pedal for 3 minutes.
6. Watch the tape measure.  If the measurement increases 10 mm (0.39 in.) or less, the master cylinder is OK.
 If the measurement increases more than 10 mm (0.39 in.), replace the master cylinder.
08/08/21 15:00:49 61SNR030_190_0004
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DYNOMITE -2009-

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HVAC (Heating, Ventilation, andAir Conditioning)
Climate Control
HVAC (Heating, Ventilation, and Air Conditioning)
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Special Tools . 21-2
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Component Location Index . 21-3
A/C Service
Tips and Precautions . 21-6
A/C System Inspection . 21-6
A/C Refrigerant Oil Replacement . 21-7
A/C Line Replacement . 21-8
General Troubleshooting Information . 21-9
DTC Troubleshooting Index . 21-15
Symptom Troubleshooting Index . 21-16
System Description . 21-19
Circuit Diagram . 21-26
DTC Troubleshooting . 21-28
Climate Control Power and Ground Circuit
Troubleshooting . 21-53
Navigation Communication Line Circuit
Troubleshooting . 21-54
Radiator and A/C Condenser Fan Low Speed Circuit
Troubleshooting . 21-56
A/C Condenser Fan High Speed Circuit Troubleshooting . 21-60
A/C Compressor Clutch Circuit Troubleshooting . 21-62
A/C Signal Circuit Troubleshooting . 21-64
In-car Temperature Sensor Test . 21-67
In-car Temperature Sensor Replacement . 21-67
Outside Air Temperature Sensor Test . 21-68
Outside Air Temperature Sensor Replacement . 21-68
Sunlight Sensor Test . 21-69
Sunlight Sensor Replacement . 21-69
Evaporator Temperature Sensor Test . 21-70 ............
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Power Transistor Test . 21-71
Air Mix Control Motor Test . 21-72
Air Mix Control Motor
Replacement . 21-72
Mode Control Motor Test . 21-73
Mode Control Motor Replacement . 21-73
Recirculation Control Motor Test . 21-74
Recirculation Control Motor Replacement . 21-74
Climate Control Unit Removal/Installation . 21-75
Dust and Pollen Filter Replacement . 21-75
Blower Unit Removal/Installation . 21-76
Blower Unit Component Replacement . 21-77
Evaporator Core Replacement . 21-78
Expansion Valve Replacement . 21-80
Heater Unit/Core Replacement . 21-81
A/C Compressor Replacement . 21-83
A/C Compressor Clutch Check . 21-85
A/C Compressor Clutch Overhaul . 21-86
A/C Compressor Thermal Protector
Replacement . 21-87
A/C Compressor Relief Valve Replacement . 21-87
A/C Condenser Replacement . 21-88
Receiver/Dryer Desiccant Replacement . 21-89
Refrigerant Recovery . 21-90
System Evacuation . 21-91
System Charging . 21-92
Refrigerant Leak Check . 21-93
A/C System Noise Check . 21-97
A/C System Test . 21-99
08/08/21 14:40:45 61SNR030_210_0002
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DYNOMITE -2009-