2006 ACURA CSX Service Repair Manual

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Page 929 of 2893

ACURA CSX 2006 Service Repair Manual SymptomProbable cause(s) Notes
14-13

Engine runs, but
vehicle does not
move in any gear
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Low ATF level
Shift cable broken or out of
adjustment
C

SymptomProbable cause(s) Notes
14-13

Engine runs, but
vehicle does not
move in any gear
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Low ATF level
Shift cable broken or out of
adjustment
Connection between the shift
cable and transmission or
body is worn
ATF pump worn or binding
Regulator valve stuck or
spring worn
ATF strainer clogged
Mainshaft worn or damaged
Final gears worn or damaged
Transmission-to-engine
assembly error
Axle disengaged Check the ATF level, and check the ATF cooler lines
for leaks and loose connections. If necessary, clean
the ATF cooler lines.
Check for a loose shift cable at the shift lever and
the selector control lever.
Improper alignment of ATF pump and torque
converter housing may cause ATF pump seizure.
The symptoms are mostly an rpm-related ticking
noise or a high pitched squeak.
Check the line pressure.
Be careful not to damage the torque converter
housing when replacing the main ball bearing. You
may also damage the ATF pump when you torque
down the main valve body. This will result in ATF
pump seizure if not detected. Use the proper tools.
Install the main seal flush with the torque converter
housing. If you push it into the torque converter
housing until it bottoms out, it will block the fluid
return passage and result in damage.
Check the ATF strainer for debris. If the ATF
strainer is clogged with particles of steel or
aluminum, inspect the ATF pump. If the ATF pump
is OK, find the damaged components that caused
the debris. If no cause for contamination is found,
replace the torque converter.
Inspect the differential pinion gears for wear. If the
differential pinion gears are worn, replace the
differential assembly, replace the ATF strainer,
thoroughly clean the transmission, and clean the
torque converter, cooler, and lines.
Vehicle moves in R,
but not in D, S, or
1st in S 1.
2.
3.1st accumulator defective
1st gears worn or damaged
1st clutch defective Check the 1st clutch pressure.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer
and the retainer seal for wear and damage. Inspect
the clearance between the clutch end-plate and the
top disc. If the clearance is out of tolerance, inspect
the clutch discs and the plates for wear and
damage. If the discs are worn or damaged, replace
them as a set. Inspect the clutch wave-plate height.
If the height is out of tolerance, replace the wave-
plate. If the discs and the plates are OK, adjust the
clearance with the clutch end-plate.
Inspect the 1st clutch feed pipe. If the 1st clutch
feed pipe is scored, replace the end cover.
Replace the secondary shaft if the bushing for the
1st clutch feed pipe is loose or damaged.
Check the 1st accumulator piston, the O-ring, and
the springs in the regulator valve body for wear
and damage.
(cont’d)
08/08/21 14:37:08 61SNR030_140_0015
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Page 930 of 2893

ACURA CSX 2006 Service Repair Manual SymptomProbable cause(s) Notes
14-14Automatic Transmission
Symptom Troubleshooting Index (cont’d)

Vehicle moves in D
and R, but not in
2ndinS
1.
2.
3.2nd accumulator defective
2n

SymptomProbable cause(s) Notes
14-14Automatic Transmission
Symptom Troubleshooting Index (cont’d)

Vehicle moves in D
and R, but not in
2ndinS
1.
2.
3.2nd accumulator defective
2nd gears worn or damaged
2nd clutch defective Check the 2nd clutch pressure.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer
and the retainer seal for wear and damage. Inspect
the clearance between the clutch end-plate and the
top disc. If the clearance is out of tolerance, inspect
the clutch discs and the plates for wear and
damage. If the discs are worn or damaged, replace
them as a set. Inspect the clutch wave-plate height.
If the height is out of tolerance, replace the wave-
plate. If the discs and the plates are OK, adjust the
clearance with the clutch end-plate.
Check the 2nd accumulator piston, the O-ring, and
the springs in the servo valve body for wear and
damage.
Vehicle moves in D
and S, but not in R 1.
2.
3.
4.
5.
6.Shift solenoid valve E defective
Shift fork shaft stuck
Shift valve E defective
4th/reverse accumulator
defective
4th clutch defective
Reverse gears worn or
damaged Check for a stored DTC, and check for loose
connectors.
Inspect shift solenoid valve E for seizure, and the
O-rings for wear and damage.
Check for a missing shift fork bolt on the shift fork
shaft.
Check shift valve E in the main valve body for free
movement, and check the shift valve E spring for
wear and damage.
Check the 4th clutch pressure.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer for
wear and damage. Inspect the clearance between
the clutch end-plate and the top disc. If the
clearance is out of tolerance, inspect the clutch
discs and the plates for wear and damage. If the
discs are worn or damaged, replace them as a set.
Inspect the clutch wave-plate height. If the height is
out of tolerance, replace the wave-plate. If the discs
and the plates are OK, adjust the clearance with the
clutch end-plate.
Inspect the reverse selector teeth chamfers, and
inspect the engagement teeth chamfers of the
countershaft 4th gear and the r
everse gear. Replace
the reverse gears and the reverse selector if they
are worn or damaged. If the transmission makes a
clicking, grinding, or whirring noise, also replace
the mainshaft 4th gear, the reverse idler gear, and
the countershaft 4th gear.
08/08/21 14:37:09 61SNR030_140_0016
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Page 931 of 2893

ACURA CSX 2006 Service Repair Manual SymptomProbable cause(s) Notes
14-15

Poor acceleration;
flares when
starting off in D, S,
and R; stall speed
high in D and S in
1st and 2nd
1.
2.
3.
4.
5.
6.Low ATF level
Shift cable

SymptomProbable cause(s) Notes
14-15

Poor acceleration;
flares when
starting off in D, S,
and R; stall speed
high in D and S in
1st and 2nd
1.
2.
3.
4.
5.
6.Low ATF level
Shift cable broken or out of
adjustment
ATF pump worn or binding
Regulator valve stuck or spring
worn
ATF strainer clogged
Torque converter check valve
defective Check the ATF level, and check the ATF cooler
lines for leakage and loose connections. If
necessary, clean the ATF cooler lines.
Check for a loose shift cable at the shift lever and
the selector control lever.
Improper alignment of ATF pump and torque
converter housing may cause ATF pump seizure.
The symptoms are mostly an rpm-related ticking
noise or a high pitched squeak.
Check the ATF strainer for debris. If the ATF
strainer is clogged with particles of steel or
aluminum, inspect the ATF pump. If the ATF
pump is OK, find the damaged components that
caused the debris. If no cause for contamination
is found, replace the torque converter.
Poor acceleration;
flares when
starting off in D, S,
and R; stall speed
high when starting
off in 2nd in S 2nd clutch defective Check the 2nd clutch pressure.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer
and the retainer seal for wear, damage, and
peeling. Inspect the clearance between the clutch
end-plate and the top disc. If the clearance is out
of tolerance, inspect the clutch discs and the
plates for wear and damage. If the discs are worn
or damaged, replace them as a set. Inspect the
clutch wave-plate height. If the height is out of
tolerance, replace the wave-plate. If the discs and
the plates are OK, adjust the clearance with the
clutch end-plate.
Poor acceleration;
flares when
starting off in D, S,
and R; stall speed
high in R 1.
2.
Shift cable broken or out of
adjustment
4th clutch defective Check for a loose shift cable at the shift lever and
the selector control lever.
Check the 4th clutch pressure.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer
for wear and damage. Inspect the clearance
between the clutch end-plate and the top disc. If
the clearance is out of tolerance, inspect the
clutch discs and the plates for wear and damage.
If the discs are worn or damaged, replace them
as a set. Inspect the clutch wave-plate height. If
the height is out of tolerance, replace the wave-
plate. If the discs and the plates are OK, adjust
the clearance with the clutch end-plate.
(cont’d)
08/08/21 14:37:09 61SNR030_140_0017
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Page 932 of 2893

ACURA CSX 2006 Service Repair Manual SymptomProbable cause(s) Notes
14-16Automatic Transmission
Symptom Troubleshooting Index (cont’d)

Poor acceleration;
flares when
starting off in D, S,
and R; stall spee

SymptomProbable cause(s) Notes
14-16Automatic Transmission
Symptom Troubleshooting Index (cont’d)

Poor acceleration;
flares when
starting off in D, S,
and R; stall speed
lowinDandSin
1st and 2nd
1.
2.
3.
4.
5.Shift solenoid valve E defective
Torque converter one-way
clutch defective
Engine output low
Torque converter clutch piston
defective
Lock-up shift valve defective Check for a stored DTC, and check for loose
connectors.
Inspect shift solenoid valve E for seizure, and the
O-rings for wear and damage.
Replace the torque converter.
Check the lock-up shift valve in the regulator valve
body for free movement, and check the lock-up
shift valve spring for wear and damage.
Poor acceleration;
flares when
starting off in D, S,
and R; stall speed
low in R 1.
2.
3.
4.Torque converter one-way
clutch defective
Engine output low
Torque converter clutch piston
defective
Lock-up shift valve defective Replace the torque converter.
Check the lock-up shift valve in the regulator valve
body for free movement, and check the lock-up
shift valve spring for wear and damage.
Engine idle
vibration 1.
2.
3.
4.
5.
6.
7.Low ATF level
Shift solenoid valve E defective
Drive plate defective or
transmission misassembled
Engine output low
Torque converter clutch piston
defective
ATF pump worn or binding
Lock-up shift valve defective Check the ATF level, and check the ATF cooler lines
for leakage and loose connections. If necessary,
clean the ATF cooler lines.
Improper alignment of ATF pump and torque
converter housing may cause ATF pump seizure.
The symptoms are mostly an rpm-related ticking
noise or a high pitched squeak.
Inspect the ATF strainer for clogging with particles
of steel or aluminum. If the ATF strainer is clogged,
replace it, and clean the torque converter, cooler,
and lines.
Check for a stored DTC, and check for loose
connectors.
Inspect shift solenoid valve E for seizure, and the
O-rings for wear and damage.
Check for a misinstalled/damaged drive plate.
Check that the idle rpm in gear is the specified idle
speed. If the idle speed is correct, adjust the engine
and the transmission mounts.
Replace the torque converter.
Check the lock-up shift valve in the regulator valve
body for free movement, and check the lock-up
shift valve spring for wear and damage.
08/08/21 14:37:09 61SNR030_140_0018
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Page 933 of 2893

ACURA CSX 2006 Service Repair Manual SymptomProbable cause(s) Notes
14-17

Vehicle moves in N 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11. Excessive ATF
Foreign material in separator
plate orifice
Relief valve defective
1st cl

SymptomProbable cause(s) Notes
14-17

Vehicle moves in N 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11. Excessive ATF
Foreign material in separator
plate orifice
Relief valve defective
1st clutch defective
2nd clutch defective
3rd clutch defective
4th clutch defective
5th clutch defective
Clearance between clutch
end-plate and top disc
incorrect
Needle bearing seized, worn,
or damaged
Thrust washer seized, worn,
or damaged Check for a clogged orifice in the separator plate. If
the orifice is clogged, remove it and clean the
separator plate orifice.
Check the ATF level, and drain the ATF if it is over-
filled.
Check the ATF strainer for debris. If the ATF
strainer is clogged with particles of steel or
aluminum, inspect the ATF pump. If the ATF pump
is OK, find the damaged components that caused
the debris. If no cause for contamination is found,
replace the torque converter.
Check the 1st, 2nd, 3rd, 4th, and 5th clutch
pressures.
Check the relief valve in the main valve body for
free movement, and check the relief valve spring
for wear and damage.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer
and the retainer seal (for 1st, 2nd, and 3rd clutch
only) for wear, damage, and peeling. Inspect the
clearance between the clutch end-plate and the top
disc. If the clearance is out of tolerance, inspect the
clutch discs and the plates for wear and damage. If
the discs are worn or damaged, replace them as a
set. Inspect the clutch wave-plate height. If the
height is out of tolerance, replace the wave-plate. If
the discs and the plates are OK, adjust the
clearance with the clutch end-plate.
Inspect the 1st clutch feed pipe. If the 1st clutch
feed pipe is scored, replace the end cover.
Inspect the 3rd clutch feed pipe. If the 3rd clutch
feed pipe is scored, replace it and the O-ring under
the feed pipe guide.
Replace the secondary shaft if the bushing for the
1st or the 3rd clutch feed pipe is loose or damaged.
Inspect the 5th clutch feed pipe. If the 5th clutch
feed pipe is scored, replace it and the O-ring under
the feed pipe guide.
Replace the mainshaft if the bushing for the 5th
clutch feed pipe is loose or damaged.
(cont’d)
08/08/21 14:37:09 61SNR030_140_0019
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Page 934 of 2893

ACURA CSX 2006 Service Repair Manual SymptomProbable cause(s) Notes
14-18Automatic Transmission
Symptom Troubleshooting Index (cont’d)

Late shift after
shifting from N to
D and S, or
excessive shock
when shift

SymptomProbable cause(s) Notes
14-18Automatic Transmission
Symptom Troubleshooting Index (cont’d)

Late shift after
shifting from N to
D and S, or
excessive shock
when shifted into
DandS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15. Shift solenoid valve E
defective
A/T clutch pressure control
solenoid valve A defective
A/T clutch pressure control
solenoid valve B defective
A/T clutch pressure control
solenoid valve C defective
Shift cable broken or out of
adjustment
Connection between the shift
cable and transmission or
body is worn
Input shaft (mainshaft) speed
sensor defective
Output shaft (countershaft)
speed sensor defective
ATF temperature sensor
defective
Foreign material in separator
plate orifice
Servo control valve defective
1st accumulator defective
1st check ball stuck
Lock-up shift valve defective
1st clutch defective Check for a stored DTC, and check for loose
connectors.
Inspect shift solenoid valve E for seizure, and the
O-rings for wear and damage.
Inspect the A/T clutch pressure control solenoid
valve filter/gasket and the O-rings for wear and
damage, and inspect the solenoid valves for
seizure.
Check the input shaft (mainshaft) speed sensor and
the output shaft (countershaft) speed sensor
installation.
Check for a loose shift cable at the shift lever and
the selector control lever.
Check the 1st clutch pressure.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer
and the retainer seal for wear, damage, and peeling.
Inspect the clearance between the clutch end-plate
and the top disc. If the clearance is out of tolerance,
inspect the clutch discs and the plates for wear and
damage. If the discs are worn or damaged, replace
them as a set. Inspect the clutch wave-plate height.
If the height is out of tolerance, replace the wave-
plate. If the discs and the plates are OK, adjust the
clearance with the clutch end-plate.
Check for a clogged orifice in the separator plate. If
the orifice is clogged, remove it and clean the
separator plate orifice.
Check the servo control valve in the main valve
body for free movement, and check the servo
control valve spring for wear and damage.
Inspect the 1st clutch feed pipe. If the 1st clutch
feed pipe is scored, replace the end cover.
Replace the secondary shaft if the bushing for the
1st clutch feed pipe is loose or damaged.
Check the 1st accumulator piston, the O-ring, and
the springs in the regulator valve body for wear
and damage.
Check the lock-up shift valve in the regulator valve
body for free movement, and check the lock-up
shift valve spring for wear and damage.
08/08/21 14:37:09 61SNR030_140_0020
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Page 935 of 2893

ACURA CSX 2006 Service Repair Manual SymptomProbable cause(s) Notes
14-19

Late shift after
shifting from N to
R, or excessive
shock when shifted
into R
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13. Shift solenoid

SymptomProbable cause(s) Notes
14-19

Late shift after
shifting from N to
R, or excessive
shock when shifted
into R
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13. Shift solenoid valve E
defective
A/T clutch pressure control
solenoid valve A defective
Shift cable broken or out of
adjustment
Connection between the shift
cable and transmission or
body is worn
Input shaft (mainshaft) speed
sensor defective
Output shaft (countershaft)
speed sensor defective
ATF temperature sensor
defective
Shift fork shaft stuck
Foreign material in separator
plate orifice
Shift valve E defective
4th/reverse accumulator
defective
Lock-up shift valve defective
4th clutch defective Check for a stored DTC, and check for loose
connectors.
Inspect shift solenoid valve E for seizure, and the
O-rings for wear and damage.
Inspect the A/T clutch pressure control solenoid
valve filter/gasket and the O-rings for wear and
damage, and inspect the solenoid valves for
seizure.
Check the input shaft (mainshaft) speed sensor and
the output shaft (countershaft) speed sensor
installation.
Check for a loose shift cable at the shift lever and
the selector control lever.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer for
wear and damage. Inspect the clearance between
the clutch end-plate and the top disc. If the
clearance is out of tolerance, inspect the clutch
discs and the plates for wear and damage. If the
discs are worn or damaged, replace them as a set.
Inspect the clutch wave-plate height. If the height is
out of tolerance, replace the wave-plate. If the discs
and the plates are OK, adjust the clearance with the
clutch end-plate.
Check for a missing shift fork bolt on the shift fork
shaft.
Check for a clogged orifice in the separator plate. If
the orifice is clogged, remove it and clean the
separator plate orifice.
Check the 4th clutch pressure.
Inspect the servo valve and the O-ring for wear and
damage.
Check shift valve E in the main valve body for free
movement, and check the shift valve E spring for
wear and damage.
Check the lock-up shift valve in the regulator valve
body for free movement, and check the lock-up
shift valve spring for wear and damage.
Transmission does
not shift 1.
2.Input shaft (mainshaft) speed
sensor defective
Output shaft (countershaft)
speed sensor defective Check for a stored DTC, and check for loose
connectors.
Check the input shaft (mainshaft) speed sensor and
the output shaft (countershaft) speed sensor
installation.
(cont’d)
08/08/21 14:37:09 61SNR030_140_0021
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Page 936 of 2893

ACURA CSX 2006 Service Repair Manual SymptomProbable cause(s) Notes
14-20Automatic Transmission
Symptom Troubleshooting Index (cont’d)

Excessive shock or
flares on all
upshifts and
downshifts
1.
2.
3.
4.
5

SymptomProbable cause(s) Notes
14-20Automatic Transmission
Symptom Troubleshooting Index (cont’d)

Excessive shock or
flares on all
upshifts and
downshifts
1.
2.
3.
4.
5.
6.A/T clutch pressure control
solenoid valve B defective
A/T clutch pressure control
solenoid valve C defective
Input shaft (mainshaft) speed
sensor defective
Output shaft (countershaft)
speed sensor defective
ATF temperature sensor
defective
Foreign material in separator
plate orifice Check for a stored DTC, and check for loose
connectors.
Inspect the A/T clutch pressure control solenoid
valve filter/gasket and the O-rings for wear and
damage, and inspect the solenoid valves for
seizure.
Check the input shaft (mainshaft) speed sensor
and the output shaft (countershaft) speed sensor
installation.
Check for a clogged orifice in the separator plate.
If the orifice is clogged, remove it and clean the
separator plate orifice.
Excessive shock or
flares on 1-2
upshift or 2-1
downshift 1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13. Shift solenoid valve E defective
A/T clutch pressure control
solenoid valve A defective
A/T clutch pressure control
solenoid valve B defective
A/T clutch pressure control
solenoid valve C defective
2nd clutch transmission fluid
pressure switch defective
Foreign material in separator
plate orifice
1st accumulator defective
2nd accumulator defective
1st check ball stuck
2nd check ball stuck
Lock-up shift valve defective
1st clutch defective
2nd clutch defective Check for a stored DTC, and check for loose
connectors.
Inspect shift solenoid valve E for seizure, and the
O-rings for wear and damage.
Inspect the A/T clutch pressure control solenoid
valve filter/gasket and the O-rings for wear and
damage, and inspect the solenoid valves for
seizure.
Check the 1st and the 2nd clutch pressures.
Check for a clogged orifice in the separator plate.
If the orifice is clogged, remove it and clean the
separator plate orifice.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer
and the retainer seal for wear, damage, and
peeling. Inspect the clearance between the clutch
end-plate and the top disc. If the clearance is out
of tolerance, inspect the clutch discs and the
plates for wear and damage. If the discs are worn
or damaged, replace them as a set. Inspect the
clutch wave-plate height. If the height is out of
tolerance, replace the wave-plate. If the discs and
the plates are OK, adjust the clearance with the
clutch end-plate.
Check the lock-up shift valve in the regulator
valve body for free movement, and check the
lock-up shift valve spring for wear and damage.
Inspect the 1st clutch feed pipe. If the 1st clutch
feed pipe is scored, replace the end cover.
Replace the secondary shaft if the bushing for the
1st clutch feed pipe is loose or damaged.
Check the 1st accumulator piston, the O-ring, and
the springs in the regulator valve body for wear
and damage.
Check the 2nd accumulator piston, the O-ring,
and the springs in the servo valve body for wear
and damage.
08/08/21 14:37:10 61SNR030_140_0022
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