ignition ACURA CSX 2006 Service Repair Manual


(#'
 )
Removal
19-171
VSA Modulator-Control Unit Removal and Installation
A C
B
I
E
F
G
H
J
9.8 N·m (1.0 kgf·m, 7.2 lbf·ft) 9.8 N·m (1.0 kgf·m, 7.2 lbf·ft)
15 N·m (1.5 kgf·m, 11 lbf·ft)
D
22 N·m
(2.2 kgf·m, 16 lbf·ft)
NOTE: Do not spill brake fluid on the vehicle; it may damage the paint; if brake fluid gets on the paint, wash it off immediately with water.
 Be careful not to damage or deform the brake lines during removal and installation.
 Plug the ends of the hoses and the joints to prevent spilling brake fluid.
1. Turn the ignition switch to LOCK (0).
2. Disconnect the VSA modulator-control unit 37P connector (A) by pushing the lock (B) and pu lling down the lever
(C); the connector disconnects itself.
3. Disconnect the six brake lines from the VSA modulator-control unit. NOTE: Brake lines are connected to the master cylinder (D) and to the right-front (E), the left-rear (F), the right-rear
(G), and the left-front (H) brake systems.
4. Remove the VSA modulator-control unit (I) with the bracket (J) from the body.
5. Remove the VSA modulator-control unit from the bracket. (cont’d)
08/08/21 15:06:47 61SNR030_190_0171
ProCarManuals.com
DYNOMITE -2009-


(#'

 ) Special Tools Required
Front
19-173
Wheel Speed Sensor Replacement
A
B
C9.8 N·m
(1.0 kgf·m,
7.2 lbf·ft)
Guide pin tool 07AAG-SVBA100
1. Turn the ignition switch to LOCK (0).
2. Release the clamp (A), then disconnect the wheel speed sensor connector (B).
3. Remove the clips, the bolt, and the wheel speed sensor (C).
4. Install the wheel speed sensor in the reverse order of removal, and note these items:  Install the sensor carefully to avoid twisting the wires.
 If the wheel speed sensor comes in contact with the wheel bearing, it is faulty, investigate the cause beforereplacing the sensor.
5. Start the engine, and make sure the ABS and the VSA indicators go off.
6. Test-drive the vehicle, and make sure the ABS and the VSA indicators do not come on.
(cont’d)
08/08/21 15:06:47 61SNR030_190_0173
ProCarManuals.com
DYNOMITE -2009-

Î
Rear
19-174VSA System Components
Wheel Speed Sensor Replacement (cont’d)
Right side
9.8 N·m
(1.0 kgf·m,
7.2 lbf·ft) A
B
C
1. Turn the ignition switch to LOCK (0).
2. Release the clamp (A), then disconnect the wheel speed sensor connector (B).
3. Remove the clips, the bolt, and the wheel speed sensor (C).
08/08/21 15:06:47 61SNR030_190_0174
ProCarManuals.com
DYNOMITE -2009-

Î
(#'


 ) Î
(#'


 )

20-16320-163
Front Grille Cover Replacement Cowl Cover Replacement
A
B
C
D
D A
A
B
C
Fastener Locations
:Clip,3
A : Clip, 2 B
E EE
E
B
F F G
F
F F
C
H
D
D
H
I
Fastener Locations
: Clip, 3
C : Clip, 5 F:Clip,1G
(White) (Light Blue)
C C
A
D E F, GA
NOTE:
 When prying with a flat-tip screwdriver, wrap it with protective tape to prevent damage.
 Take care not to scratch the front bumper or the body.
1. Remove the front fender trim from both sides (see page 20-162).
2. Remove the clips (A, B) by carefully pulling the rear of the front grille cover (C) up, then remove the
cover by releasing the front edge of the cover from
the front grille (D). Take care not to scratch the
body.
NOTE: To release the clips, pry up on the center pin
at the notch (E).
3. Install the cover in the reverse order of removal, and note these items:
 If the clips are damaged or stress-whitened, replace them with new ones.
 Push the clip portions into place securely. NOTE: Take care not to scratch the body.
1. Turn the ignition switch to ON (II), then turn on the wiper switch. When the wiper arms reach about
90 °, quickly turn the ignition switch to LOCK (0).
2. Remove the center cowl cover (A). –1 Remove the hood rear seal (B) by pu lling it out.
–2 Remove the clips (C).
–3 Release three front hooks (D) from the edge of the under-cowl panel (E).
–4 Detach the clips (F, G) by carefully pulling the cover upward, then remove the cover by
releasing the hooks (H). Take care not to
scratch the body.
3. Disconnect the windshield washer tube (I). (cont’d)
08/08/21 15:05:01 61SNR030_200_0165
ProCarManuals.com
DYNOMITE -2009-

(#'

)Î
Î
(#'

")
21-621-6 Climate Control
A/C Service Tips and Precautions A/C System Inspection
A
 Compressed air mixed with the R-134a forms a
combustible vapor.
 The vapor can burn or explode causing serious injury.
 Never use compressed air to pressure test R-134a service equipment or vehicle air
conditioning systems.
 Air conditioning refrigerant or lubricant vapor can irritate your eyes, nose, or throat.
 Be careful when connecting service equipment.
 Do not breathe refrigerant or vapor.
The air conditioning system uses HFC- 134a (R-134a)
refrigerant and polyalkyleneglycol (PAG) refrigerant oil,
which are not compatible with CFC-12 (R-12) refrigerant
or mineral oil. Do not use R-12 refrigerant or mineral oil
in this system, and do not attempt to use R-12 servicing
equipment; damage to the air conditioning system or
your servicing equipment will result.
Use only service equipment that is U.L.-listed and is
certified to meet the requirements of SAE J2210 to
remove R-134a from the air conditioning system.
If accidental system discharge occurs, ventilate the
work area before resuming service.
R-134a service equipment or vehicle air c onditioning
systems should not be pressure tested or leak tested
with compressed air.
Additional health and safety information may be
obtained from the refrigerant and lubricant
manufacturers.
 Always disconnect the negative cable from the battery whenever replacing air conditioning parts.
 Keep moisture and dirt out of the system. When disconnecting any lines, plug or cap the fittings
immediately; don’t remove the caps or plugs until
just before you reconnect each line.
 Before connecting any hose or line, apply a few drops of refrigerant oil to the O-ring.
 When tightening or loosening a fitting, use a second wrench to support the matching fitting.
 When discharging the system, use an R-134a refrigerant recovery/recycling/charging station; don’t
release refrigerant into the atmosphere. Before troubleshooting any problem with the air
conditioning system, do the following:
1. With the ignition switch in LOCK (0), inspect the A/C components, the pressure lines, and the hoses for
stains that may indicate a refrigerant or a
compressor oil leak.
2. Check the A/C condenser (A) for material clogging the fins or for damage to the fins:
 Carefully clean any material from the A/C condenser fins with water and detergent. If
deeper cleaning is required, clean the fins with
Honda brite cleaner (P/N 08732-0020B).
 Be sure to dry the A/C condenser completely.
 Refer to the Refrigerant Leak Check (see page 21-93) to confirm leaks if there is visible damage
to the A/C condenser.
Check for stains.
08/08/21 14:40:55 61SNR030_210_0007
ProCarManuals.com
DYNOMITE -2009-


(#'



)

How to Check for DTCs with the HDS
21-9
General Troubleshooting Information
A
1. Make sure the ignition switch is in LOCK (0).
2. Connect the HDS to the data link connector (DLC) (A) located under the driver’s side of the dashboard.
3. Turn the ignition switch to ON (II).
4. Make sure the HDS communicates with the vehicle and the climate control unit. If it doesn’t, troubleshoot the DLCcircuit (see page 11-204).
5. Select HVAC/CLIMATE CONTROL in the BODY ELECTRICAL menu.
6. Select DTCs in the HVAC/CLIMATE CONTROL menu.
7. Check for DTCs. If any DTCs are indicated, write down the DTCs, then go to the indicated DTC troubleshooting. If no DTCs are indicated, refer to symptom troubleshooting.
NOTE: After troubleshooting, clear the DTCs with the HDS.
 For specific operations, refer to the user’s manual that came with the HDS.
(cont’d)
08/08/21 14:40:57 61SNR030_210_0010
ProCarManuals.com
DYNOMITE -2009-

How to Use the Self-diagnostic Function with the HDS
21-10Climate Control
General Troubleshooting Information (cont’d)
1. Make sure the ignition switch is in LOCK (0).
2. Connect the HDS to the data link connector (DLC).
3. Turn the ignition switch to ON (II).
4. Make sure the HDS communicates with the vehicle and the climate control unit. If it doesn’t, troubleshoot the DLC
circuit (see page 11-204).
5. Select HVAC/CLIMATE CONTROL in the BODY ELECTRICAL menu.
6. Select INSPECTION in the HVAC/CLIMATE CONTROL menu.
7. Select CLIMATE CONTROL SELF TEST in the INSPECTION menu.
8. Check for DTCs. If any DTCs are indicated, write down the DTCs, then go to the indicated DTC troubleshooting. NOTE: After troubleshooting, clear the DTCs with the HDS.
 For specific operations, refer to the user’s manual that came with the HDS.
08/08/21 14:40:57 61SNR030_210_0011
ProCarManuals.com
DYNOMITE -2009-



How to Use the Self-diagnostic Function without the HDS
Except Type S model
Type S model
Canceling the Self-diagnostic Function
21-11
AUTO BUTTON AUTO INDICATOR MODE BUTTON
TEMPERATURE INDICATOR
RECIRCULATION BUTTON A/C BUTTON
MODE BUTTON TEMPERATURE INDICATOR
RECIRCULATION BUTTON
A/C BUTTON AUTO BUTTON
AUTO INDICATOR
The climate control unit has a self-diagnostic function. To run the self-diagnostic function, do the following:
1. Make sure the ignition switch is in LOCK (0).
2. Press and hold the AUTO and RECIRCULATION buttons, turn the ignition switch to ON (II), then release the AUTO and RECIRCULATION buttons.
3. All LCD segments come on for 2 seconds, then self-diagnostic function begins.
NOTE: The blower motor will run at various speeds when in the self-diagnostic mode, regardless of what the
panel is displaying. If there is any problem in the system, the temperature indicator will light up the segment (A through P) and AUTO indicator corresponding to the error. The temperature indicator will then alternate every second between
displaying ‘‘88’’ (all segments lit) and the error code segment (A through P) and AUTO indicator. To determine
the meaning of the DTC, refer to checking for DTCs.
 If there are no problems detected, the segments will not illuminate, and the system will appear to be turned off.
4. Turn the ignition switch to LOCK (0) to cancel the self-diagnostic function. After completing repair work, run the self-diagnostic function again to make sure that there are no other DTCs.
(cont’d)
08/08/21 14:40:57 61SNR030_210_0012
ProCarManuals.com
DYNOMITE -2009-

Displaying Sensor Inputs at the Climate Control Unit
Check these items before using the sensor input display mode
To run the sensor input display mode, follow these steps
21-13
The climate control unit has a mode that displays the sensor inputs it receives. This mode shows you what data the
climate control unit is receiving from each of the sensors, one at a time, and it can help you determine if a sensor is
faulty.1. Turn the ignition switch to ON (II), and check the recirculation door function; press the recirculation button to switch from FRESH to RECIRC. The air volume and sound should change slightly.
2. Set the temperature control knob to the desired test temperature. When selecting the test temperature, note these items:
 ‘‘Lo’’ temperature setting will default to MAX COOL, VENT, and RECIRC.
 ‘‘Hi’’ temperature setting will default to MAX HOT, FLOOR, and FRESH.
 19 through 31 °C settings will use the automatic climate control logic.
3. Turn the ignition switch to LOCK (0).
1. Turn the ignition switch to LOCK (0).
2. Press and hold both the AUTO and MODE buttons, then start the engine.
3. After the engine starts, release both buttons. The display panel will flash the sensor number and then the value for that sensor. Record the value displayed.
4. To advance to the next sensor, press the A/C button. Sensor Item Displayed Value1 Mode Positioning BIT
2 In-car Temperature °C
3 Outside Air Temperature °C
4 Solar Radiation Sensor Value: Dark = 00, Flashlight = 04, Cloudy = 10, Sunny = 65 10 kcal/m ·h
5 Evaporator Outlet Air Temperature °C
6 Air Mix Opening (Low value indicates cooler air distribution, higher value indicates warmer air distribution) % of opening
7 Recirculation Opening % of opening
8 Vehicle Speed (Vehicle must be driven to display speed) km/h
9 Engine Coolant Temperature °C
A Vent Temperature Air Out (TAO) °C
NOTE:  The sensor values will be displayed in degrees Celsius (°C) or an alphanumeric code. Use the chart to convert the value to degrees Fahrenheit (°F).
 If the sensor value displays ‘‘Er’’ this indicates there is an open or short in the circuit or sensor. Check for DTCs using the HDS, or use the climate control self-diagnostic function.
 If necessary, compare the sensor input display to a known-good vehicle under the same test conditions.
 If the sensor is out of the normal range, refer to the sensor test or substitute a known-good sensor, and recheck.
5. To cancel the sensor input display mode, press the AUTO button or turn the ignition switch to LOCK (0). (cont’d)
2
08/08/21 14:40:58 61SNR030_210_0014
ProCarManuals.com
DYNOMITE -2009-

´•••
•••
•••
•••µ
µ
•••
•••
µ ••• •••
•••

Climate Control Unit Inputs and Outputs
Cavity Wire
color Terminal
name Description Signal
21-24Climate Control
System Description (cont’d)
CLIMATE CONTROL UNIT 32P CONNECTOR
1 GRY ILL Power source for illumination With lighting switch ON: battery
voltage
2 BRN RrDEF Ry Drives rear window defogger relay
3 LT GRN IG2 IG2 power source With ignition switch ON (II): battery voltage
5 BLK GND Ground for climate control unit (G504)
6 RED ACS Outputs A/C ON signal
7 BLK S5V Outputs sensor 5V With ignition switch ON (II): about 5V
8 BRN Teva Detects evaporator temperature sensor signal
9 LT BLU M-COOL Drives air mix control motor COOL side Drive on COOL side: 7 V 15 V
10 WHT M-VENT Drives mode control motor VENT side Drive on VENT side: about 14.5 V
11 PNK M-HOT Drives air mix control motor HOT side Drive on HOT side: 7 V 15 V
12 GRN M-DEF Drives mode control motor DEF side Drive on DEF side: about 14.5 V
13 YEL BLW-G Outputs power transistor gate
14 BLU BLW-V Feedback signal of power transistor drain voltage
15 ORN REC Drives recirculation control motor REC side Drive on REC side: about 14.5 V
16 PUR FRS Drives recirculation control motor FRESH side Drive on FRESH side: about 14.5 V
18 RED ILL Ground for illumination
19 RED S-COM Ground exclusive for sensor
20 BLU MODE 4 Inputs mode motor signal 4
Wire side of female terminals
08/08/21 14:41:02 61SNR030_210_0025
ProCarManuals.com
DYNOMITE -2009-