engine coolant ACURA CSX 2006 Service Owners Manual

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YES
NO
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YES
NO
YES
NO
DTC P0404:
11-35811-358EGR System
DTC Troubleshooting (cont’d)
EGR VALVE 6P CONNECTOR
SG2
EGRP
15. 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).
16. Test-drive under these conditions:  Engine coolant temperature (ECT SENSOR 1)above70°C(158°F)
 A/TinD,M/Tin4th
 Drive at a steady speed between 88 120 km/h (55 75 mph) for at least 10 seconds
 During the drive, decelerate (with the throttle fully closed) for 5 seconds
17. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the EGR valve and the ECM/PCM. If the
ECM/PCM was updated, substitute a known-good
ECM/PCM (see page 11-7), then go to step 16. If the
ECM/PCM was substituted, go to step 1.
Go to step 18.
18. Monitor the OBD STATUS for DTC P0401 in the DTCs MENU with the HDS.
If the ECM/PCM was updated,
troubleshooting is complete. If the ECM/PCM was
substituted, replace the original ECM/PCM
(see page 11-228). If any other Temporary DTCs or
DTCs were indicated in step 17, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the EGR valve
and the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 16. If the ECM/PCM was substituted,
go to step 1. If the screen indicates EXECUTING,
keep driving until a result comes on. If the screen
indicates OUT OF CONDITION, go to step 16. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.
4. Do the EGR TEST in the INSPECTION MENU with the HDS.
Intermittent failure, the system is OK at this
time. Clean any carbon build-up on the EGR valve
with throttle plate and induction cleaner.
Go to step 5.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the EGR valve 6P connector.
7. At the EGR valve side, measure the resistance between EGR valve 6P connector terminals No. 1
and No. 2.
Go to step 25.
Go to step 8.EGR Valve Circuit Range/
Performance Problem
Terminal side of male terminals
I s DT Cs P0401 i nd i cat ed ?
Does t he scr een i nd i cat e PASSE D? Is the result OK ?
Is t her e 100 k or mor e?
08/08/21 14:31:16 61SNR030_110_0358
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Special Tools Required
13-7
Transmission Removal
A
B C
D
A A
B
A
B C
 Engine hanger adapter
VSB02C000015
 2006 Civic engine hanger VSB02C000025
 Engine support hanger, A and Reds AAR-T 1256
 Front subframe adapter VSB02C000016
These special tools are available through the Acura
Canada Technical Tools Department; FAX
866-398-8665/e-mail: ch_technicaltools ch.honda.com
NOTE: Use fender covers to avoid damaging painted
surfaces.
1. Do the battery removal procedure (see page 22-69).
2. Remove the cowl cover and the under-cowl panel (see page 20-163).
3. Remove the air cleaner assembly (see page 11-345).
4. Remove the harness clips (A) and the intake air duct (B), then remove the battery base (C) with the
coolant reservoir (D). 5. Remove the clutch line bracket (A), then carefully
move the slave cylinder (B) out of the way to avoid
bending the clutch line.
NOTE: Do not press the clutch pedal after the slave
cylinder has been moved.
6. Disconnect the back-up light switch connector (A), the output shaft (countershaft) speed sensor
connector (B), and the harness clips (C).
(cont’d)
08/08/21 14:44:19 61SNR030_130_0009
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Special Tools Required
13-84
Manual Transmission
Transmission Removal
A
B C
D
A A
B
D
C
A
B
 Engine hanger adapter VSB02C000015
 2006 Civic engine hanger VSB02C000025
 Engine support hanger, A and Reds AAR-T 1256
 Front subframe adapter VSB02C000016
These special tools are available through the Acura
Canada Technical Tools Department; FAX
866-398-8665/e-mail: ch_technicaltools ch.honda.com
NOTE: Use fender covers to avoid damaging painted
surfaces.
1. Do the battery removal procedure (see page 22-69).
2. Remove the cowl cover and the under-cowl panel (see page 20-163).
3. Remove the air cleaner assembly (see page 11-345).
4. Remove the harness clips (A) and the intake air duct (B), then remove the battery base (C) with the
coolant reservoir (D). 5. Remove the clutch line bracket (A), then carefully
move the slave cylinder (B) out of the way to avoid
bending the clutch line.
NOTE: Do not press the clutch pedal after the slave
cylinder has been moved.
6. Disconnect the back-up light switch connector (A), the output shaft (countershaft) speed sensor
connector (B), the r everse lockout solenoid
connector (C), and the harness clips (D).
08/08/21 14:47:19 61SNR030_130_0086
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Electronic Control System
Functional Diagram
14-39
*1: ’06-07 models
*2: ’08-09 models Engine RPM Signal
Accelerator Pedal
Position Sensor Signal
Barometric Pressure
Sensor Signal
Manifold Absolute
Pressure Sensor Signal
ATF Temperature
Sensor Signal
Service Check SignalTransmission
Range
Switch
Signal
Brake Pedal Position
Switch Signal PGM-FI Control
System
PCM
A/T Control System Shift Control
 Ascending Control
 Descending
Control
 D-paddle Shift
Control

Clutch Pressure
Control
Lock-up Control
Shift Lock Control Shift Lock Solenoid
Vehicle Speed Signal
Data Link Connector Shift Solenoid Valve E
Shift Solenoid Valve D Shift Solenoid Valve C Shift Solenoid Valve B
Shift Solenoid Valve A
F-CAN Line
Automatic
Five-speed and
ReverseLock-up
ON/OFF
Lock-up
Conditions
Sequential
Sportshift
Control Gauge Control Module
(Tach) A/T Gear
Position Indicator
Engine Coolant
Temperature Sensor Signal
2ndClutchTransmission
Fluid Pressure Switch Signal ABS Modulator-Control
Unit Signal (via F-CAN line)*
Output Shaft (Countershaft)
Speed Sensor Signal
Paddle Shifter /
(Upshift/Downshift Switch) 3rdClutchTransmission
Fluid Pressure Switch Signal
1
VSA Modulator-Control
Unit Signal (via F-CAN line)*2
Input Shaft (Mainshaft)
Speed Sensor Signal
Grade Logic Control
Self-diagnosis/
Fail-safe Function
Communication and
Output Function
A/TClutchPressure
Control Solenoid Valve C A/TClutchPressure
Control Solenoid Valve B A/TClutchPressure
Control Solenoid Valve A
The electronic control system consists of the powertrain control module (PCM), sensors, and solenoid valves.
Shifting and lock-up are electronically controlled for comfortable driving under all conditions.
The PCM receives input signals from sensors, switches, and other control units, processes data, and outputs signals
for the engine control system and the A/T control system. The A/T control system includes shift control, grade logic
control, clutch pressure control, and lock-up control.
The PCM switches the shift solenoid valves and the A/T clutch pressure control solenoid valves ON and OFF to control
gear selection and torque converter clutch lock-up.
(cont’d)
08/08/21 14:38:21 61SNR030_140_0041
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Shift Control - Grade Logic Control
14-41
Transmission Range
Switch Signal PCM
Brake Pedal Position
Switch Signal Engine RPM
Control
Engine RPM Signal
Output Shaft
(Countershaft)
Speed Sensor Signal Input Shaft
(Mainshaft)
Speed Sensor Signal
Engine Coolant
Temperature
Sensor Signal Shift Position
Control
Fail-safe Control
Actual Driving
Shift PositionRead of ATF
Temperature
Master Target of
Shifting Position
Correction of Data
Selection of
Shifting Mode
Grade Logic Control
Calculation of
Gradient
Correction of Engine
Coolant Temperature
Sensor Signal Data Shift Solenoid
Valve A
ATF Temperature
Sensor Signal Comparison
with Signals
Accelerator Pedal
Position Sensor Signal
Throttle Position
Sensor Signal
Barometric Pressure
Sensor Signal Shift Solenoid
Valve B
Shift Solenoid
Valve C
Shift Solenoid
Valve D
Shift Solenoid
Valve E
A grade logic control system has been adopted to control shifting in D, and in S with automatic shift mode. The PCM
compares actual driving conditions with programmed driving conditions, based on the input from the accelerator
pedal position sensor, the throttle position sensor, the engine coolant temperature sensor, the barometric pressure
sensor, the brake pedal position switch signal, the output shaft (countershaft) speed sensor signal, and the shift l ever
position signal, to control shifting while the vehicle is ascending or descending a slope.
(cont’d)
08/08/21 14:38:21 61SNR030_140_0043
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ÎClutch Pressure Control
14-45
PCM
Engine RPM Signal
Engine Coolant
Temperature
Sensor Signal Input Shaft
(Mainshaft)
Speed Sensor Signal
Output Shaft
(Countershaft)
Speed Sensor Signal
ATF Temperature
Sensor Signal Actual
Driving Shift
Position
Correction of Data
Correction of Engine
Coolant Temperature
Sensor Data
Manifold Absolute
Pressure Sensor Signal
3rd Clutch
Transmission Fluid
Pressure Switch Signal 2nd Clutch
Transmission Fluid
Pressure Switch Signal
Correction of ATF
Temperature Sensor
Signal Data
Correction of
Hydraulic Pressure
Applying Timing
Correction of Engine
Torque Signal Data Master Target of
Controlling Current
Decision of
Shifting Mode
Ignition Timing
Requirement
PGM-FI
Control
System
Current
Feedback A/T Clutch Pressure
Control Solenoid
Valves A, B, and C
PGM-FI
Control
System
Throttle Position
Sensor Signal
Barometric Pressure
Sensor Signal
The PCM actuates A/T clutch pressure control solenoid valves A, B, and C to control the clutch pressure. When shifting
between lower and higher gears, the clutch pressure regulated by A/T clutch pressure control solenoid valves A, B,
and C engages and disengages the clutch smoothly.
The PCM receives input signals from the various sensors and the switches, processes data, and outputs current to A/T
clutch pressure control solenoid valves A, B, and C.
(cont’d)
08/08/21 14:38:23 61SNR030_140_0047
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Electronic Control System (cont’d)
Lock-up Control
14-46Automatic Transmission
System Description (cont’d)
PCM
Engine RPM Signal Engine Coolant
Temperature
Sensor Signal Barometric
Pressure
Sensor
Signal
Input Shaft
(Mainshaft)
Speed Sensor Signal Output Shaft
(Countershaft)
Speed Sensor Signal
ATF Temperature
Sensor Signal Actual
Driving
Shift
Position
Transmission Range
Switch Signal
Correction
of ATF
Temperature
Sensor DataShifting Position
Control
Current Feedback
Accelerator Pedal
Position Sensor Signal
Throttle Position
Sensor Signal
Driving
Shift
Position
Information
 Engine Coolant
Temperature Control
Lock-up Control
Lock-up ON/OFF
Control
A/T Clutch Pressure
Control Solenoid
Valve A
Gradient Control
by Magnitude
Fail-safe Control
Lock-up Condition
Control
Master Target of
Controlling Current Shift Solenoid
Valve E
Shift solenoid valve E controls the hydraulic pressure to switch the lock-up shift valve and lock-up ON and OFF. When
the PCM actuates shift solenoid valve E and A/T clutch pressure control solenoid valve A to start lock-up. A/T clutch
pressure control solenoid valve A regulates and applies hydraulic pressure to the lock-up control valve to control the
amount of lock-up. The lock-up mechanism operates in D and S (2nd, 3rd, 4th, and 5th gears).
08/08/21 14:38:24 61SNR030_140_0048
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DTC P0711:
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
14-96
Automatic Transmission
DTC Troubleshooting (cont’d)
Problem in ATF Temperature
Sensor Circuit
NOTE:
 Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review
General Troubleshooting Information (see page 14-3).
 This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the
transmission.
1. Turn the ignition switch to ON (II).
2. Check the ATF Temp Sensor in the Data List with the HDS.
Record the ATF temperature. Leave the
engine off for at least 30 minutes, then go to step 3.
Record the ATF temperature. Test the stall
speed RPM (see page 14-210) three times, then go
to step 3.
3. Check the ATF Temp Sensor in the Data List with the HDS.
Leave the engine off for at least 30 minutes,
then go to step 4.
Replace the ATF temperature sensor
(see page 14-229), then go to step 6.
4. Check the ECT Sensor in the Data List with the HDS.
Go to step 5.
Leave the engine off until ECT Sensor reads
the same as the outside air temperature, then go to
step 5. 5. Check the ATF Temp Sensor in the Data List with
the HDS.
Go to step 13.
Replace the ATF temperature sensor
(see page 14-229), then go to step 6.
6. Turn the ignition switch to ON (II).
7. Clear the DTC with the HDS.
8. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
9. Allow the engine coolant temperature to cool to the outside air temperature.
10. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on),
and wait for at least 20 seconds, then drive the
vehicle at speeds over 31 km/h (19 mph) for at least
5 minutes.
11. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals between the ATF temperature sensor and
thePCM,thengotostep1.
Go to step 12.
Does t he AT F t emper at ur e ex ceed t he out si d e ai rt emper at ur e?
Di d t he AT F t emper at ur e change?Does t he E CT Sensor r ead about t he same as t heout si d e ai r t emper at ur e? Does t he AT F t emper at ur e r ead about t he same as
ECT Sensor?
Is DTC P0711 indicated?
08/08/21 14:41:02 61SNR030_140_0098
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NO
14-97
12. Monitor the OBD STATUS for P0711 in the DTCs
MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 11,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals between the ATF
temperaturesensorandthePCM,thengotostep1.
If the HDS indicates NOT COMPLETED, go to step 8.
13. Update the PCM if it does not have the latest software (see page 11-227), or substitute a known-
good PCM (see page 11-7).
14. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
15. Allow the engine coolant temperature to cool to the outside air temperature.
16. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on),
and wait for at least 20 seconds, then drive the
vehicle at speeds over 31 km/h (19 mph) for at least
5 minutes.
17. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals between the ATF temperature sensor and
the PCM. If the PCM was updated, substitute a
known-good PCM (see page 11-7), then go to step
14. If the PCM was substituted, go to step 1.
Go to step 18. 18. Monitor the OBD STATUS for P0711 in the DTCs
MENU with the HDS.
If the PCM was updated, troubleshooting is
complete. If the PCM was substituted, replace the
original PCM (see page 11-228). If any other
Temporary DTCs or DTCs were indicated in step 17,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals between the ATF
temperature sensor and the PCM. If the PCM was
updated, substitute a known-good PCM (see page
11-7), then go to step 14. If the PCM was substituted,
go to step 1. If the HDS indicates NOT COMPLETED,
go to step 14.
Does the HDS ind icate PASSED?
Is DTC P0711 indicated? Does the HDS ind icate PASSED?
08/08/21 14:41:02 61SNR030_140_0099
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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
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