vent ACURA CSX 2006 Service Manual Online

ØÚÓ



Î
How to Troubleshoot Circuits at the PCM
Connectors
14-5
A
D E
B
A
C A
D
B
C
A
NOTE: The PCM overwrites data and monitors the EVAP
system for about 30 minutes after the ignition switch is
turned to LOCK (0) or ACC (I). Jumping the SCS line
after turning the ignition switch to LOCK (0) or ACC (I)
cancels this function. Disconnecting the PCM during
this function, without jumping the SCS line first, can
damage the PCM.
1. Make sure the ignition switch is turned to LOCK (0), then jump the SCS line with the HDS.
2. Remove the cover (A).
3. Lift up the under-hood fuse/relay box (D).
4. Remove the coolant reservoir (E). Disconnect PCM connectors A, B, and C, and probe the terminals
from the terminal side of the connectors.
NOTE: PCM connectors A, B, and C have symbols
(A= , B= , C= ) embossed on them for
identification. 5. When diagnosis/troubleshooting is done at the
PCM connector, use the terminal test port (A) above
the terminal you need to check.
6. Connect one side of the patch cord’s terminals (A) to a commercially available digital multimeter (B),
and connect the other side cord’s terminals (C) to a
commercially available banana jack (Pomona
Electronics Tool No. 3563 or equivalent) (D).
7. Gently contact the pin probe (male) at the terminal test port from the terminal side. Do not force the
tips into the terminals.
 For accurate results, always use the pin probe (male).
 To prevent damage to the connector terminals, do not insert test equipment
probes, paper clips, or other substitutes as
they can damage the terminals. Damaged
terminals cause a poor connection and an
incorrect measurement.
 Do not puncture the insulation on a wire. Punctures can cause poor or intermittent
electrical connections.
(cont’d)
08/08/21 14:37:07 61SNR030_140_0007
ProCarManuals.com
DYNOMITE -2009-



Electronic Control System (cont’d)
Grade Logic Control: Ascending Control
Grade Logic Control: Descending Control
14-42Automatic Transmission
System Description (cont’d)
100 %
50
0 Vehicle speed
ASCENDING MODE: Upshift Schedule
: FLAT ROAD MODE: GRADUAL ASCENDING MODE
: MEDIUM ASCENDING MODE
: STEEP ASCENDING MODE
: HEAVY STEEP ASCENDING MODE
Throttle opening
50
0 DESCENDING MODE: Downshift Schedule
: FLAT ROAD MODE
: GRADUAL DESCENDING MODE : MEDIUM DESCENDING MODE
: STEEP DESCENDING MODE
Vehicle speed
100 %
Throttle opening
3RD 4TH
4TH
2ND
1ST
5TH
2ND 3RD
3RD 4TH
2ND
1ST
5TH
2ND 3RD 4TH
When the PCM determines that the vehicle is climbing a hill in D, and S with automatic shift mode, the system extends
the engagement area of 2nd, 3rd, and 4th gears to prevent the transmission from frequently shifting between 2nd and
3rd gears, between 3rd and 4th gears, and between 4th and 5th gears. Then PCM does this so the vehicle can run
smoothly and have more power when needed.
NOTE: Shift commands stored in the PCM between 2nd and 3rd gears, between 3rd and 4th gears, and between 4th
and 5th gears, enable it to automatically select the most suitable gear according to the magnitude of a gradient.
When the PCM determines that the vehicle is going down a hill in D, and S with automatic shift mode, the upshift
speed from 4th to 5th gear, from the 3rd to 4th gear, and from 2nd to 3rd gear (when the throttle is closed) becomes
higher than the set speed for flat road driving to extend 4th gear, 3rd gear, and 2nd gear driving area. This, in
combination with engine braking from the deceleration lock-up, achieves smooth driving when the vehicle is
descending. There are three descending modes with different 4th gear driving areas, 3rd gear driving areas, and 2nd
gear driving areas according to the magnitude of a gradient stored in the PCM. When the vehicle is in 5th gear or 4th
gear, and you are decelerating when you are applying the brakes on a steep hill, the transmission will downshift to
lower gear. When you accelerate, the transmission will then return to a higher gear.
08/08/21 14:38:22 61SNR030_140_0044
ProCarManuals.com
DYNOMITE -2009-

(#'


)
Hydraulic Flow
Distribution of Hydraulic Pressure
Hydraulic Pressure at the Port for use in the hydraulic circuitPortNo. Hydraulic Pressure Port
No.Hydraulic Pressure
14-57
As the engine turns, the ATF pump starts to operate. Automatic transmission fluid (ATF) is drawn through the ATF
strainer (filter) and discharged into the hydraulic circuit. Then, ATF flowing from the ATF pump becomes line pressure
that is regulated by the regulator valve. Torque converter pressure from the regulator valve enters the torque
converter through the lock-up shift valve, and it is discharged from the torque converter. The torque converter check
valve prevents torque converter pressure from rising.
The PCM switches shift solenoid valves ON and OFF. The shift solenoid valve intercepts line pressure from the ATF
pump via the manual valve when the shift solenoid valve is OFF. When the shift solenoid valve is turned ON by the
PCM, line pressure changes to shift solenoid valve pressure at the shift solenoid valve, then the shift solenoid valve
pressure flows to the shift valve. Applying shift solenoid pressure to the shift valves moves the position of the shift
valve, and switches the port of the hydraulic circuit. The PCM also controls A/T clutch pressure control solenoid valves
A, B, and C. The A/T clutch pressure control solenoid valves regulate hydraulic pressure, and applies pressure to the
clutches to engage smoothly. The clutches receive optimum clutch pressure which is regulated by the A/T clutch
pressure control solenoid valves for comfortable driving and shifting under all conditions.
1 Line SB Shift solenoid valve B
3 Line SC Shift solenoid valve C
3’ Line SD Shift solenoid valve D 4 Line SE Shift solenoid valve E
4’ Line 10 1st clutch
4’’ Line 20 2nd clutch 7 Line 30 3rd clutch
1A 40 4th clutch 1B 50 5th clutch
3A 55 A/T clutch pressure control solenoid valve A 3B 55’ A/T clutch pressure control solenoid valve A
3C 56 A/T clutch pressure control solenoid valve B
5A 57 A/T clutch pressure control solenoid valve C 5B 90 Torque converter
5C 91 Torque converter
5D 92 Torque converter 5E 93 ATF cooler5F 94 Torque converter
5G A/T clutch pressure control solenoid valve B 95 Lubrication 5H A/T clutch pressure control solenoid valve C 96 Torque converter 5J A/T clutch pressure control solenoid valve C 97 Torque converter
5K A/T clutch pressure control solenoid valve C 99 Suction 5L A/T clutch pressure control solenoid valve C X Drain
5N A/T clutch pressure control solenoid valve C HX High position drain
SA Shift solenoid valve A AX Air drain
(cont’d)
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve A
Line or A/T clutch pressure control solenoid valve B
Line or A/T clutch pressure control solenoid valve A or
B
08/08/21 14:38:29 61SNR030_140_0059
ProCarManuals.com
DYNOMITE -2009-

Î(#'

)
Shift Lock System
14-76Automatic Transmission
System Description (cont’d)
P POSITION
LOCK PIN
SHIFT LOCK
STOP
SHIFT LOCK
SOLENOID PLUNGER
SHIFT LOCK SOLENOID: OFF SHIFT LOCK SOLENOID: ON
SELECT LEVER
GATE
The shift lock system prevents the shift lever from mis-shifting. The shift lock solenoid is usually OFF. After starting
the engine in P, the shift lever ca
nnot move to any other position from P because the shift lock stop stops the lock pin
unless the brake pedal is pressed. When the brake pedal is pressed and the accelerator pedal is not pressed, the shift
lock solenoid is ON; the shift lock solenoid plunger in the shift lock solenoid pulls the shift lock stop to release the lock
pin. Pressing the shift lever button, allows the shift lever to move to any other position. When the brake pedal and the
accelerator pedal are pressed at the same time, the shift lock system is not unlocked.
08/08/21 14:39:44 61SNR030_140_0078
ProCarManuals.com
DYNOMITE -2009-

µ

(#'

)
14-208Automatic Transmission
Road Test
A
1. Apply the parking brake, and block both rear
wheels.
2. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
3. Shift to D while pressing the brake pedal. Press the accelerator pedal, and release it suddenly. The
engine should not stall.
4. Repeat step 3 in all shift lever positions.
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), and go to the A/T Data List. Make sure the HDS communicates with
the PCM. If it does not, go to the DLC circuit
troubleshooting (see page 11- 204).7. Prepare the HDS to take a HIGH SPEED SNAPSHOT
(refer to the HDS user guide for more details if
needed):
 Select High Speed icon.
 Select these parameters: – Vehicle Speed
– Output Shaft (Countershaft) Speed (rpm)
– Input Shaft (Mainshaft) Speed (rpm)
– Engine Speed
– APP Sensor A (V)
– ATF Temp Sensor (V)
– Battery Voltage
– Shift Control
– Brake Switch
 Set the Trigger Type to Parameter.
 Adjust the Parameter setting to APP Sensor A above 1.2 V.
 Set the recording time to 60 seconds.
 Set the Trigger point to 30 seconds.
8. Find a suitable level road. When you are ready to do the test, press OK on the HDS.
9. Monitor the HDS and accelerate quickly until the APP Sensor A reads 1.3 V. Maintain a steady
throttle until the transmission shifts to 5th gear,
then slow the vehicle and come to a stop.
10. Save the snapshot if the entire event was recorded or increase the recording time setting as necessary
and repeat step 9.
11. Adjust the Parameter setting to 2.4 V. Retest-drive the vehicle. While monitoring the HDS, accelerate
quickly until the APP Sensor A reads 2.5 V.
Maintain a steady throttle until the transmission
shifts to 5th gear (or reasonable speed), then slow
the vehicle and come to a stop.
12. Save the snapshot if the entire event was recorded or increase the recording time setting as necessary
and repeat step 11.
13. Accelerate quickly until the accelerator pedal is to the floor. Maintain a steady pedal until the
transmission shifts to 3rd gear, then slow to a stop,
and save the snapshot.
08/08/21 14:45:32 61SNR030_140_0210
ProCarManuals.com
DYNOMITE -2009-





14-235
A
B
AB
A
B A
B C
07AAK-SNAA120
17. Disconnect the ATF cooler hoses (A) from the ATF lines (B). Turn the end of the ATF cooler hoses up to
prevent ATF from flowing out, then plug the hoses
and lines.
18. Remove the bolt securing the harness clamp bracket (A) from the transmission hanger (B). 19. Remove the water hose from its clamp.
20. Remove the air cleaner housing mounting bracket
(A).
21. Install the engine hanger plate (07AAK-SNAA120) onthestudnut(B)witha8x1.25-16mmbolt(C).
Useonlythe8x1.25mmand16mminlengthof
the threaded bolt. If you use other than 16 mm
threaded-length bolt, it may damage the engine
cylinder head.
(cont’d)
08/08/21 14:46:55 61SNR030_140_0237
ProCarManuals.com
DYNOMITE -2009-



14-244Automatic Transmission
Transmission Installation (cont’d)
12x1.25mm
59 N·m
(6.0 kgf·m, 43 lbf·ft)
10x1.25mm
39 N·m
(4.0 kgf·m, 29 lbf·ft)
E
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)
F
8x1.25mm
22 N·m
(2.2 kgf·m, 16 lbf·ft)
D
8x1.25mm
22 N·m (2.2 kgf·m, 16 lbf·ft)
A
B
C A
B
8. Secure the transmission mount bracket on the
transmission housing with new mounting bolts.
9. Install a new set ring (A) on the intermediate shaft (B). 10. Clean the areas where the intermediate shaft
contacts the transmission (differential) with solvent,
and dry with compressed air. Apply intermediate
shaft splines with ATF, then install the intermediate
shaft, be sure not to allow dust or other foreign
particles to enter the transmission.
11. Install the intermediate shaft cover (C) with installing the m ounting bolts loosely.
12. First tighten the right upper bolt (D) on the cover, then the right lower bolt (E), and lastly the left bolt
(F).
13. Install a new set ring (A) on the left driveshaft (B).
14. Clean the areas where the left driveshaft contacts the transmission (differential) with solvent, and dry
with compressed air. Then install the left driveshaft,
be sure not to allow dust or other foreign particles
to enter the transmission. Turn the steering knuckle
fully outward, and slide the driveshaft into the
differential until you feel its set ring fully engage
thesidegear.
15. Apply right driveshaft inboard-joint splines with the recommended grease (P/N 08734-0001).
16. Slide the right driveshaft over the intermediate shaft splines until you feel the driveshaft fully
engage the intermediate shaft set ring.
Replace.
08/08/21 14:48:44 61SNR030_140_0246
ProCarManuals.com
DYNOMITE -2009-

Ì
Ì Ì

(#'



!)
14-30114-301
Valve Body Repair
B A
6. Remove the cooler check valve spring (L) and thecooler check valve (M), then remove the main valve
body (N) (three bolts). Do not let the check balls (O)
fall out.
7. Remove the ATF pump driven gear shaft (P), then remove the ATF pump gears (Q).
8. Remove the main separator plate (R) and the two dowel pins (S).
9. Remove the ATF magnet (T), clean and reinstall it in the torque converter housing (U).
10. Clean the inlet opening (A) of the ATF strainer (B) thoroughly with compressed air, then check that it
is in good condition and that the inlet opening is
not clogged.
11. Test the ATF strainer by pouring clean ATF through the inlet opening, and replace it if it is clogged or
damaged.
12. Remove the O-rings (V) (W) from the stator shaft and the ATF strainer. Install the new ones when
installing the valve bodies. NOTE: This repair is only necessary if one or more of
the valves in a valve body do not slide smoothly in their
bores. Use this procedure to free the valves.
1. Soak a sheet of 600 abrasive paper in ATF for about 30 minutes.
2. Carefully tap the valve body so the sticking valve drops out of its bore. It may be necessary to use a
small screwdriver to pry the valve free. Be careful
not to scratch the bore with the screwdriver.
3. Inspect the valve for any scuff marks. Use the ATF- soaked 600 paper to polish off any burrs that are
on the valve, then wash the valve in solvent and
dry it with compressed air.
4. Roll up half a sheet of ATF-soaked 600 paper and insert it in the valve bore of the sticking valve.
Twist the paper slightly, so that it unrolls and fits
the bore tightly, then polish the bore by twisting the
paper as you push it in and out.
NOTE: The valve body is aluminum and does not
require much polishing to remove any burrs.
(cont’d)
08/08/21 14:51:12 61SNR030_140_0303
ProCarManuals.com
DYNOMITE -2009-

Ì
Ì Ì

(#'



!)
14-30114-301
Valve Body Repair
B A
6. Remove the cooler check valve spring (L) and thecooler check valve (M), then remove the main valve
body (N) (three bolts). Do not let the check balls (O)
fall out.
7. Remove the ATF pump driven gear shaft (P), then remove the ATF pump gears (Q).
8. Remove the main separator plate (R) and the two dowel pins (S).
9. Remove the ATF magnet (T), clean and reinstall it in the torque converter housing (U).
10. Clean the inlet opening (A) of the ATF strainer (B) thoroughly with compressed air, then check that it
is in good condition and that the inlet opening is
not clogged.
11. Test the ATF strainer by pouring clean ATF through the inlet opening, and replace it if it is clogged or
damaged.
12. Remove the O-rings (V) (W) from the stator shaft and the ATF strainer. Install the new ones when
installing the valve bodies. NOTE: This repair is only necessary if one or more of
the valves in a valve body do not slide smoothly in their
bores. Use this procedure to free the valves.
1. Soak a sheet of 600 abrasive paper in ATF for about 30 minutes.
2. Carefully tap the valve body so the sticking valve drops out of its bore. It may be necessary to use a
small screwdriver to pry the valve free. Be careful
not to scratch the bore with the screwdriver.
3. Inspect the valve for any scuff marks. Use the ATF- soaked 600 paper to polish off any burrs that are
on the valve, then wash the valve in solvent and
dry it with compressed air.
4. Roll up half a sheet of ATF-soaked 600 paper and insert it in the valve bore of the sticking valve.
Twist the paper slightly, so that it unrolls and fits
the bore tightly, then polish the bore by twisting the
paper as you push it in and out.
NOTE: The valve body is aluminum and does not
require much polishing to remove any burrs.
(cont’d)
08/08/21 14:51:12 61SNR030_140_0303
ProCarManuals.com
DYNOMITE -2009-

Ì
 

(#'



 )
14-30214-302 Valve Body
Valve Body Repair (cont’d)
Valve Body Valve Installation
C
A B
5. Remove the 600 paper. Thoroughly wash the
entire valve body in solvent, then dry it with
compressed air.
6. Coat the valve with ATF, then drop it into its bore. It should drop to the bottom of the bore under its
own weight. If not, repeat step 4, then retest. If the
valve still sticks, replace the valve body.
7. Remove the valve, and thoroughly clean it and the valve body with solvent. Dry all parts with
compressed air, then reassemble using ATF as a
lubricant. 1. Coat all parts with ATF before assembly.
2. Install the valves and the springs in the sequence
shown for the main valve body (see page 14-303),
the regulator valve body (see page 14-305), and the
servo body (see page 14- 306). Refer to the
following valve cap illustrations, and install each
valvecapsotheendshownfacingupwillbefacing
the outside of the valve body.
3. Install all the springs and the seats. Insert the spring (A) in the valve, then install the valve in the
valve body (B). Push the spring in with a
screwdriver, then install the spring seat (C).
08/08/21 14:51:12 61SNR030_140_0304
ProCarManuals.com
DYNOMITE -2009-