2006 ACURA CSX automatic transmission

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DTC D MIL Detection Item Page(1)Two Drive
Cycle
Detection
Indicator
14-10 Automatic Transmission
DTC Troubleshooting Index (cont’d)
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review General
Troubleshooting Information (see page 14-3).













P16C0 (99) OFF ON PCM A/T Control System Incomplete
Update(see page 14-192)
P1717 (62) Blinks OFF Open in Transmission Range Switch ATPRVS Switch Circuit(see page 14-192)
P1730 (45) Blinks ON Problem in Shift Control System: Shift Solenoid Valves A or D Stuck OFF
Shift Solenoid Valve B Stuck ON
Shift Valves A, B, or D Stuck(see page 14-195)
P1731 (45) Blinks ON Problem in Shift Control System: Shift Solenoid Valve E Stuck ON
Shift Valve E Stuck
A/T Clutch Pressure Control Solenoid
Valve A Stuck OFF(see page 14-197)
P1732 (45) Blinks ON Problem in Shift Control System: Shift Solenoid Valves B or C Stuck ON
Shift Valves B or C Stuck(see page 14-198)
P1733 (45) Blinks ON Problem in Shift Control System: Shift Solenoid Valve D Stuck ON
Shift Valve D Stuck
A/T Clutch Pressure Control Solenoid
Valve C Stuck OFF(see page 14-200)
P1734 (45) Blinks ON Problem in Shift Control System: Shift Solenoid Valves B or C Stuck OFF
Shift Valves B or C Stuck(see page 14-201)
P2122 (20) Blinks ON Accelerator Pedal Position (APP) Sensor A (Throttle Position Sensor D) Circuit Low
Voltage Input(see page 14-203)
P2123 (20) Blinks ON Accelerator Pedal Position (APP) Sensor A (Throttle Position Sensor D) Circuit High
Voltage Input(see page 14-204)
U0028 (107) Blinks ON or OFFF-CAN Malfunction (BUS-OFF (PCM)) (see page 14-205)
U0122 (107) Blinks OFF F-CAN Malfunction (PCM-VSA Modulator-Control Unit)(see page 14-206)
U0155 (107) Blinks ON or OFFF-CAN Malfunction
(PCM-Gauge Control Module) (see page 14-207)
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.
(3): The MIL comes on when the PGM-FI system detects the same failure.
(2)
(3)
(3)
08/08/21 14:37:08 61SNR030_140_0012
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SymptomProbable cause(s) Notes
14-12Automatic Transmission
Symptom Troubleshooting Index (cont’d)

















 

Shift lever cannot
be moved from P
while pressing on
the brake pedal
Accelerator pedal position sensor
circuit
Accelerator pedal position sensor
defective
Brake pedal position switch circuit
Brake pedal position switch
defective
Shift lock solenoid defective
Shift lock solenoid control circuit
Shift lock mechanism defective
Throttle body defective
Transmission range switch ATPP
switch stuck OFF
Transmission range switch ATPP
switch line opened Inspect the APP Sensor signal (see page 11-268).
Troubleshoot the shift lock system circuit
(see page 14-280).
Test the shift lock solenoid (see page 14-287).
Inspect the transmission range switch (see page
14-265).
Ignition switch
cannot be moved
from ACCESSORY
(I) to LOCK (0) (key
is pushed in, the
shift lever in P) Interlock control system circuit
Key interlock solenoid stuck ON
Park pin switch stuck OFF
Transmission range switch
Troubleshoot the key interlock system circuit
(see page 14-285).
Inspect the transmission range switch (see page
14-265).
HDS does not
communicate with
the PCM or the
vehicle DLC circuit error Troubleshoot the DLC circuit (see page 11-204).
08/08/21 14:37:08 61SNR030_140_0014
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DYNOMITE -2009-

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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DYNOMITE -2009-

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
ProCarManuals.com
DYNOMITE -2009-

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
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
14-22Automatic Transmission
Symptom Troubleshooting Index (cont’d)








Excessive shock or
flares on 3-4
upshift or 4-3
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
3rd accumulator defective
4th/reverse accumulator defective
3rd clutch defective
4th 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 3rd and the 4th clutch pressures.
Inspect the clutch piston, the clutch piston check
valve, and the O-rings. Check the spring retainer
and the retainer seal (for 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 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 3rd accumulator piston, the O-ring,
and the springs in the regulator valve body for
wear and damage.
08/08/21 14:37:10 61SNR030_140_0024
ProCarManuals.com
DYNOMITE -2009-

SymptomProbable cause(s) Notes
14-24Automatic Transmission
Symptom Troubleshooting Index (cont’d)













Vehicle does not
accelerate above
50 km/h (31 mph)
Torque converter one-way clutch
defective
Replace the torque converter.
Vibrationinall
shift lever
positions Drive plate defective or transmission
misassembled
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.
Shift lever does
not operate
smoothly 1.
2.
3.Transmission range switch
defective or out of adjustment
Shift cable broken or out of
adjustment
Connection between the shift
cable and transmission or body is
worn Check for a stored DTC, and check for loose
connectors.
Inspect the transmission range switch for
operation.
Check for a loose shift cable at the shift lever and
the selector control lever.
Transmission does
not shift into P 1.
2.
3.Shift cable broken or out of
adjustment
Connection between the shift
cable and transmission or body is
worn
Park mechanism defective Check for a loose shift cable at the shift lever and
the selector control lever.
Check the park pawl spring installation and the
park lever spring installation. If installation is
incorrect, install the spring correctly. Make sure
that the park lever stop is not installed upside
down. Check the distance between the park pawl
shaft and the park lever roller pin. If the distance
is out of tolerance, select and install the
appropriate park lever stop.
Torque converter
clutch does not
disengage 1.
2.
3.
4.
5.Shift solenoid valve E defective
A/T clutch pressure control
solenoid valve A defective
Torque converter clutch piston
defective
Lock-up shift valve defective
Lock-up control 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.
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.
Replace the torque converter.
Check the lock-up control valve in the main valve
body for free movement, and check the lock-up
control valve 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.
08/08/21 14:37:10 61SNR030_140_0026
ProCarManuals.com
DYNOMITE -2009-