2006 ACURA CSX transmission fluid

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Automatic Transmission
Automatic TransmissionA/T Gear Position Indicator
A/T Interlock System.............................................. .....
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Special Tools . 14-2
General Troubleshooting Information . 14-3
DTC Troubleshooting Index . 14-9
Symptom Troubleshooting Index . 14-13
Component Location Index . 14-25
System Description . 14-26
DTC Troubleshooting . 14-80
Road Test . 14-208
Stall Speed Test . 14-210
Pressure Test . 14-211
Shift Solenoid Valve
Test . 14-215
Replacement . 14-217
Shift Solenoid Wire Harness Replacement . 14-217
A/T Clutch Pressure Control Solenoid Valve A
Test . 14-219
Replacement . 14-221
A/T Clutch Pressure Control Solenoid Valve B
Test . 14-222
Replacement . 14-226
A/T Clutch Pressure Control Solenoid Valve C
Test . 14-224
Replacement . 14-226
Input Shaft (Mainshaft) Speed Sensor Replacement . 14-227
Output Shaft (Countershaft) Speed Sensor Replacement . 14-227
2nd Clutch Transmission Fluid Pressure Switch Replacement . 14-228
3rd Clutch Transmission Fluid Pressure Switch Replacement . 14-228
ATF Temperature Sensor Test/Replacement . 14-229
ATF Level Check . 14-231
ATF Replacement . 14-232
Transmission Removal . 14-233
Drive Plate Removal and Installation . 14-242
Transmission Installation . 14-242
ATF Cooler Hose Replacement . 14-253
Shift Lever Removal . 14-254
Shift Lever Installation . 14-255
Shift Lever Disassembly/Reassembly . 14-256
Shift Cable Replacement . 14-257
Shift Cable Adjustment . 14-259 ......................
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Component Location Index . 14-263
Circuit Diagram . 14-264
Transmission Range Switch Test . 14-265
Transmission Range Switch
Replacement . 14-267
A/T Gear Position Indicator Panel Light Harness Replacement . 14-269
Paddle Shifter (Upshift Switch) Circuit Troubleshooting . 14-270
Replacement . 14-276
Paddle Shifter (Downshift Switch) Circuit Troubleshooting . 14-273
Replacement . 14-277
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Component Location Index . 14-278
Circuit Diagram . 14-279
Shift Lock System Circuit
Troubleshooting . 14-280
Key Interlock System Circuit Troubleshooting . 14-285
Shift Lock Solenoid Test . 14-287
Shift Lock Solenoid Replacement . 14-287
Shift Lock Stop Replacement . 14-288
Shift Lock Stop Cushion Replacement . 14-288
Park Pin Switch Test . 14-289
Park Pin Switch Replacement . 14-269
08/08/21 14:37:02 61SNR030_140_0002
ProCarManuals.com
DYNOMITE -2009-

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DTC D MIL Detection Item Page(1)Two Drive
Cycle
Detection
Indicator
14-9
P0842 (25) Blinks ON Short in 2nd Clutch Transmission Fluid
Pressure Switch Circuit, or 2nd Clutch
Transmission Fluid Pressure Switch Stuck
ON (see page 14-140)
P0843 (25) Blinks ON Open in 2nd Clutch Transmission Fluid
Pressure Switch Circuit, or 2nd Clutch
Transmission Fluid Pressure Switch Stuck
OFF (see page 14-142)
P0847 (26) Blinks OFF Short in 3rd Clutch Transmission Fluid
Pressure Switch Circuit, or 3rd Clutch
Transmission Fluid Pressure Switch Stuck
ON (see page 14-145)
P0848 (26) Blinks OFF Open in 3rd Clutch Transmission Fluid
Pressure Switch Circuit, or 3rd Clutch
Transmission Fluid Pressure Switch Stuck
OFF (see page 14-147)
P0962 (16) Blinks ON Problem in A/T Clutch Pressure Control
Solenoid Valve A Circuit (see page 14-150)
P0963 (16) Blinks ON Problem in A/T Clutch Pressure Control
Solenoid Valve A (see page 14-153)
P0966 (23) Blinks ON Problem in A/T Clutch Pressure Control
Solenoid Valve B Circuit (see page 14-155)
P0967 (23) Blinks ON Problem in A/T Clutch Pressure Control
Solenoid Valve B (see page 14-158)
P0970 (29) Blinks ON Problem in A/T Clutch Pressure Control
Solenoid Valve C Circuit (see page 14-160)
P0971 (29) Blinks ON Problem in A/T Clutch Pressure Control
Solenoid Valve C (see page 14-163)
P0973 (7) Blinks ON Short in Shift Solenoid Valve A Circuit (see page 14-165)
P0974 (7) Blinks ON Open in Shift Solenoid Valve A Circuit (see page 14-167)
P0976 (8) Blinks ON Short in Shift Solenoid Valve B Circuit (see page 14-170)
P0977 (8) Blinks ON Open in Shift Solenoid Valve B Circuit (see page 14-172)
P0979 (22) Blinks ON Short in Shift Solenoid Valve C Circuit (see page 14-175)
P0980 (22) Blinks ON Open in Shift Solenoid Valve C Circuit (see page 14-177)
P0982 (60) Blinks ON Short in Shift Solenoid Valve D Circuit (see page 14-180)
P0983 (60) Blinks ON Open in Shift Solenoid Valve D Circuit (see page 14-182)
P0985 (61) Blinks ON Short in Shift Solenoid Valve E Circuit (see page 14-185)
P0985 (61) Blinks ON Short in Shift Solenoid Valve E Circuit (see page 14-187)
P0986 (61) Blinks ON Open in Shift Solenoid Valve E Circuit (see page 14-189)
NOTE: (1): The DTC in parentheses is the flash code the D indicator indicates when the data link connector (DLC) is connected to the HDS, and in the SCS mode.
(2): This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
(4): ’06 model
(5): ’07-09 models
(cont’d)(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2) (2)
(2)
(2)
(2)
(2), (4)
(2), (5)
(2)
08/08/21 14:37:08 61SNR030_140_0011
ProCarManuals.com
DYNOMITE -2009-

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
ProCarManuals.com
DYNOMITE -2009-

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
ProCarManuals.com
DYNOMITE -2009-

SymptomProbable cause(s) Notes
14-21









Excessive shock or
flares on 2-3
upshift or 3-2
downshift
1.
2.
3.
4.
5.
6.
7.
8.
9.A/T clutch pressure control
solenoid valve B defective
A/T clutch pressure control
solenoid valve C defective
3rd clutch transmission fluid
pressure switch defective
Foreign material in separator
plate orifice
2nd accumulator defective
3rd accumulator defective
2nd check ball stuck
2nd clutch defective
3rd clutch defective 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 2nd and the 3rd 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.
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
3rd clutch feed pipe is loose or damaged.
Check the 2nd accumulator piston, the O-ring,
and the springs in the servo body for wear and
damage.
Check the 3rd accumulator piston, the O-ring,
and the springs in the regulator valve body for
wear and damage.
(cont’d)
08/08/21 14:37:10 61SNR030_140_0023
ProCarManuals.com
DYNOMITE -2009-

SymptomProbable cause(s) Notes
14-23













Excessive shock or
flares on 4-5
upshift or 5-4
downshift
1.
2.
3.
4.
5.
6.
7.A/T clutch pressure control
solenoid valve B defective
A/T clutch pressure control
solenoid valve C defective
Foreign material in separator
plate orifice
4th/reverse accumulator defective
5th accumulator defective
4th clutch defective
5th clutch defective 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 for a clogged orifice in the separator plate.
If the orifice is clogged, remove it and clean the
separator plate orifice.
Check the 4th and the 5th clutch pressures.
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 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.
Check the 4th and the 5th accumulator pistons,
the O-rings, and the springs in the servo body for
wear and damage.
Noise from
transmission in all
shift lever
positions 1.
2.
ATF pump worn or binding
Mainshaft bearing, countershaft
bearing, or secondary shaft
bearing defective 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.
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.
Inspect the ATF strainer is clogged with particles
of steel or aluminum. If the ATF strainer is
clogged, replace it, and clean the torque
converter, cooler, and lines.
Inspect the mainshaft, the countershaft, and the
secondary shaft for wear or damage.
(cont’d)
08/08/21 14:37:10 61SNR030_140_0025
ProCarManuals.com
DYNOMITE -2009-

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14-27
Component Location Index
PADDLE SHIFTER
(DOWNSHIFT SWITCH)PADDLE SHIFTER
(UPSHIFT SWITCH)
SHIFT LOCK SOLENOID
DATA LINK CONNECTOR (DLC) PARK PIN SWITCH
OUTPUT SHAFT
(COUNTERSHAFT)
SPEED SENSOR
TRANSMISSION
RANGE SWITCH
INPUTSHAFT(MAINSHAFT)
SPEED SENSOR
A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVE C ATF TEMPERATURE
SENSOR
(Behind shift
solenoid valve cover)
SHIFT SOLENOID VALVE C
(Behind shift
solenoid valve cover) SHIFT SOLENOID
VALVE B
(Behind shift
solenoid valve cover)
SHIFT SOLENOID
VALVE A
(Behind shift
solenoid valve cover)
2ND CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH POWERTRAIN CONTROL
MODULE (PCM)
A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVE B A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVE A
SHIFT SOLENOID VALVE D
(Behind shift
solenoid valve cover)
SHIFT SOLENOID VALVE E
(Behind shift
solenoid valve cover) 3RD CLUTCH
TRANSMISSION FLUID
PRESSURE SWITCH
Replacement,
page 14-227 Replacement, page 14-227
Test, page 14-224
Replacement, page 14-226
Test/Replacement,page 14-229
Test, page 14-215
Replacement,
page 14-217 Test, page 14-215
Replacement,
page 14-217
Test, page 14-215
Replacement, page 14-217
Replacement, page 14-228
Test, page 14-222
Replacement,page 14-226 Test, page 14-219
Replacement, page 14-221
Test, page 14-215
Replacement, page 14-217
Test, page 14-215
Replacement, page 14-217 Replacement,
page 14-228
08/08/21 14:37:16 61SNR030_140_0029
ProCarManuals.com
DYNOMITE -2009-

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General Operation
Torque Converter, Gears, and Clutches
Electronic Control
Hydraulic Control
Shift Control Mechanism
Lock-up Mechanism
14-28Automatic Transmission
System Description
The automatic transmission is a combination of a three-element torque converter and triple-shaft electronically
controlled unit which provides five speeds forward and one in reverse. The entire unit is positioned in line with the
engine.
The torque converter consists of a pump, turbine, and stator assembly in a single unit. The converter housing (pump)
is connected to the engine crankshaft and turns as the engine turns. Around the outside of the torque converter is a
ring gear which meshes with the starter drive gear when the engine is being started. The entire torque converter
assembly serves as a flywheel while transmitting power to the transmission mainshaft. The transmission has three
parallel shafts; the mainshaft, the countershaft, and the secondary shaft. The mainshaft is in line with the engine
crankshaft, and includes the 4th and 5th clutches, and gears for 5th, 4th, reverse, and idler. The mainshaft reverse gear
is integral with the mainshaft 4th gear. The countershaft includes the gears for 1st, 2nd, 3rd, 4th, 5th, reverse, park,
and the final drive. The final drive gear is integral with the countershaft. The countershaft 4th gear and the
countershaft r
everse gear can be locked to the countershaft providing 4th or r everse gear, depending on which way
the selector is moved. The secondary shaft includes the 1st, 2nd, and 3rd clutches, and gears for 1st, 2nd, 3rd, and
idler. The idler gear shaft is located between the mainshaft and the secondary shaft, and the idler gear transmits
power between the mainshaft and the secondary shaft. The gears on the mainshaft and the secondary shaft are in
constant mesh with those on the countershaft. When certain combinations of gears in the transmission are engaged
by the clutches, power is transmitted through the mainshaft, then to the secondary shaft to the countershaft, or
through the mainshaft to the countershaft to provide drive.
The electronic control system consists of the powertrain control module (PCM), sensors, and shift solenoid valves.
Shifting and lock-up are electronically controlled for comfortable driving under all conditions. The PCM is located in
the engine compartment.
The valve bodies include the main valve body, the regulator valve body, and the servo body. They are bolted to the
torque converter housing. The main valve body contains the manual valve, shift valves A, B, C, and E, the relief valve,
the lock-up control valve, the cooler check valve, the servo control valve, and the ATF pump gears. The regulator valve
body contains the regulator valve, the torque converter check valve, the lock-up shift valve, and the 1st and 3rd
accumulators. The servo body contains the servo valve, shift valve D, the accumulators for 2nd, 4th, and 5th, and shift
solenoid valves A, B, C, D, and E. Fluid from the regulator passes through the manual valve to the various control
valves. The 1st, 3rd, and 5th clutches receive fluid from their respective feed pipes, and the 2nd and 4th clutches
receive fluid from the internal hydraulic circuit.
To shift gears, the PCM controls shift solenoid valves A, B, C, D, and E, and A/T clutch pressure control solenoid valves
A, B, and C, while receiving input signals from various sensors and switches located throughout the vehicle. The shift
solenoid valves shift the positions of the shift valves to switch the port leading hydraulic pressure to the clutch. A/T
clutch pressure control solenoid valves A, B, and C regulate their respective pressure, and pressurize the clutches to
engage them and their corresponding gears. The pressure of the A/T clutch pressure control solenoid valves also
applies to the shift valves to switch the port.
The lock-up mechanism operates in D (2nd, 3rd, 4th, and 5th gears). The pressurized fluid is drained from the back of
the torque converter through a fluid passage, causing the torque converter clutch piston to be held against the torque
converter cover. As this takes place, the mainshaft rotates at the same speed as the engine crankshaft. Together with
the hydraulic control, the PCM optimizes the timing and volume of the lock-up mechanism. When shift solenoid valve
E is turned on by the PCM, shift solenoid valve E pressure switches the lock-up shift valve on and off. A/T clutch
pressure control solenoid valve A and the lock-up control valve control the degree of lock-up.
08/08/21 14:37:16 61SNR030_140_0030
ProCarManuals.com
DYNOMITE -2009-