2006 ACURA CSX automatic transmission

(#'
 

)
µ
µ
µ
µ µ
µ
µ
µ
µ
µ
DTC P1733:
YES
NO
YES
NO YES
NO
YES
NO
YES
NO
14-200
Automatic Transmission
DTC Troubleshooting (cont’d)
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
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).
1. Warm up the engine to normal operating temperature (the radiator fan comes on).
2. Make sure that the transmission is filled to the proper level, and check for fluid leaks.
3. Drain the ATF (see step 3 on page 14-232) through a strainer. Inspect the strainer for metal debris or
excessive clutch material.
Replace the transmission, then go to step 14.
Replace the ATF (see page 14-232), then go to
step 4.
4. Turn the ignition switch to ON (II).
5. Clear the DTC with the HDS.
6. Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears.
7. Monitor the OBD STATUS for P1733 in the DTCs MENU with the HDS.
Go to step 8.
If the HDS indicates PASSED, intermittent
failure, the system is OK at this time. If the HDS
indicates NOT COMPLETED, go to step 6.
8. Clear the DTC with the HDS. 9. Select Shift Solenoid Valve D in the Miscellaneous
Test Menu, and check it operates with the HDS.
Go to step 10.
Replace shift solenoid valve D (see page
14-217), then go to step 14.
10. Select Clutch Pressure Control (Linear) Solenoid Valve C in the Miscellaneous Test Menu, and test
A/T clutch pressure control solenoid valve C with
the HDS.
Intermittent failure, the system is OK at this
time.
Follow the instructions indicated on the HDS
according to the test result, but if the HDS has not
determined the cause of the failure, go to step 11. If
any part was replaced, go to step 12.
11. Inspect A/T clutch pressure control solenoid valve C (see page 14-224).
Repair the hydraulic system related with shift
valve D, or replace the transmission, then go to
step 14.
Replace A/T clutch pressure control
solenoid valve C (see page 14-226), then go to step
12.
Does t he st r ai ner hav e met al d ebr i s or ex cessi v e clutch mater ial?
Does the HDS ind icate F AILED? Is a clicking sound heard?
Does the HDS ind icate NORMAL?
Does A/ T cl ut ch pr essur e cont r ol sol enoi d v al v e Coper at e pr oper l y ?
08/08/21 14:45:30 61SNR030_140_0202
ProCarManuals.com
DYNOMITE -2009-

µ
µ
µ
µ
µ
µ µ
µ
µ
µ
YES
NO
YES
NO
YES
NO YES
NO
YES
NO
14-202Automatic Transmission
DTC Troubleshooting (cont’d)
9. Select Shift Solenoid Valve B in the Miscellaneous
Test Menu, and check it operates with the HDS.
Go to step 10.
Replace shift solenoid valve B (see page
14-217), then go to step 13.
10. Select Shift Solenoid Valve C in the Miscellaneous Test Menu, and check it operates with the HDS.
Go to step 11.
Replace shift solenoid valve C (see page
14-217), then go to step 13.
11. Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears.
12. Monitor the OBD STATUS for P1734 in the DTCs MENU with the HDS.
Repair the hydraulic system related with shift
valves B and C, or replace the transmission, then
go to step 13.
If the HDS indicates PASSED, intermittent
failure, the system is OK at this time. If the HDS
indicates NOT COMPLETED, go to step 11. 13. Test-drive the vehicle with the shift lever in D, and
let the transmission shift through all five gears.
14. Check for Temporary DTCs or DTCs with the HDS.
Go to step 8.
Go to step 15.
15. Monitor the OBD STATUS for P1734 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 14,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, go to step 8. If
the HDS indicates NOT COMPLETED, go to step 13.
Is a clicking sound heard?
Is a clicking sound heard?
Does the HDS ind icate F AILED? Is DTC P1734 indicated?
Does the HDS ind icate PASSED?
08/08/21 14:45:31 61SNR030_140_0204
ProCarManuals.com
DYNOMITE -2009-

(#'
 

)
µ
µ
µ
µ
µ
µ µ
µ
DTC P2123:
YES
NO
YES
NO
YES
NO YES
NO
14-204
Automatic Transmission
DTC Troubleshooting (cont’d)
Accelerator Pedal Position (APP)
Sensor A (Throttle Position Sensor D) Circuit
High Voltage Input
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).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Check for Temporary DTCs or DTCs in the PGM-FI SYSTEM with the HDS.
Go to the DTC P2123 troubleshooting in the
electronic throttle control system (ETCS) (see page
11-256).
Go to step 4.
4. Check for Temporary DTCs or DTCs in the A/T SYSTEM with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. If any other Temporary DTCs or DTCs were
indicated, go to the indicated DTC’s
troubleshooting.
5. 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).
6. Start the engine, and wait for at least 2 minutes.
7. Check for Temporary DTCs or DTCs in the A/T SYSTEM with the HDS.
Check for poor connections or loose
terminals at the PCM. If the PCM was updated,
substitute a known-good PCM (see page 11-7), then
go to step 6. If the PCM was substituted, go to step
1.
Go to step 8. 8. Monitor the OBD STATUS for P2123 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 7,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals at the PCM. If the
PCM was updated, substitute a known-good PCM
(see page 11-7), then go to step 6. If the PCM was
substituted, go to step 1. If the HDS indicates NOT
COMPLETED, go to step 6.
Is DT C P2123 indicated in the PGM-F I SY ST EM?
Is DT C P2123 indicated in the A/ T SY ST EM?
Is DT C P2123 indicated in the A/ T SY ST EM? Does the HDS ind icate PASSED?
08/08/21 14:45:31 61SNR030_140_0206
ProCarManuals.com
DYNOMITE -2009-

(#'
 
*
)
µ
µ
µ
µ
µ
µ µ
µ
DTC U0122:
YES
NO
YES
NO
YES
NO YES
NO
14-206
Automatic Transmission
DTC Troubleshooting (cont’d)
F-CAN Malfunction (PCM-VSA
Modulator-Control Unit)
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).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Check for Temporary DTCs or DTCs in the PGM-FI SYSTEM with the HDS.
Go to the DTC U0122 troubleshooting in the
PGM-FI SYSTEM (see page 11-184).
Go to step 4.
4. Check for Temporary DTCs or DTCs in the A/T SYSTEM with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. If any other Temporary DTCs or DTCs were
indicated, go to the indicated DTC’s
troubleshooting.
5. 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).
6. Start the engine, and wait for at least 2 minutes.
7. Check for Temporary DTCs or DTCs in the A/T SYSTEM with the HDS.
Check for poor connections or loose
terminals between the VSA modulator-control unit
and the PCM. If the PCM was updated, substitute a
known-good PCM (see page 11-7), then go to step
6. If the PCM was substituted, go to step 1.
Go to step 8. 8. Monitor the OBD STATUS for U0122 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 7,
go to the indicated DTC’s troubleshooting.
If the HDS indicates FAILED, check for poor
connections or loose terminals between the VSA
modulator-control unit and the PCM. If the PCM
was updated, substitute a known-good PCM
(see page 11-7), then go to step 6. If the PCM was
substituted, go to step 1. If the HDS indicates NOT
COMPLETED, go to step 6.
Is DT C U0122 indicated in the PGM-F I SY ST EM?
Is DT C U0122 indicated in the A/ T SY ST EM?
Is DT C U0122 indicated in the A/ T SY ST EM? Does the HDS ind icate PASSED?
08/08/21 14:45:31 61SNR030_140_0208
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-


(#'

)
µ
Stall Speed rpm:
Specification: 2,150 rpm
Service Limit: 2,000 2,300 rpm Problem Probable causes
14-210
Automatic Transmission
Stall Speed Test
A
1. Make sure the transmission fluid is filled to the
proper level (see page 14-231).
2. Apply the parking brake, and block all four wheels.
3. Connect the HDS to the DLC (A) located under the driver’s side of the dashboard.
4. 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).
5. Make sure the A/C switch is OFF.
6. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
7. Shift to D while pressing the brake pedal firmly, then fully press the accelerator pedal for
6 to 8 seconds, and note the engine speed. Do not
move the shift lever or remove your foot off the
brake pedal while raising the engine speed.
8. Allow 2 minutes for cooling, then repeat the test in SandR.
NOTE: Do not test the stall speed for more than 10 seconds at a time.
 The stall speed tests should be used for diagnostic purposes only.
 Stall speed test results should be the same with the shift lever in D, S, and R.
 Do not test the stall speed with the A/T oil pressure gauges installed. 9. If the stall speeds are out of the service limit, the
problems and probable causes are listed in the
table.







Stall speed rpm high
in D, S, and R
ATF pump output
low
Clogged ATF strainer
Regulator valve stuck
Slipping clutch
Stall speed rpm high
in R Slippage of 4th clutch
Stall speed rpm low
in D, S, and R Engine output low
Engine throttle valve
closed
Torque converter
one-way clutch
slipping
08/08/21 14:46:42 61SNR030_140_0212
ProCarManuals.com
DYNOMITE -2009-

´µµ
µ


Pressure Fluid Pressure
Standard Service Limit
14-212Automatic Transmission
Pressure Test (cont’d)
B
C
12. Connect the A/T oil pressure gauge to the 1st clutch pressure inspection port (B).
13. Remove the intake air duct (see page 11-348) and the air cleaner assembly (see page 11-345).
14. Remove the harness cover from its bracket, and connect the A/T oil pressure gauge to the 2nd
clutch pressure inspection port (C). Then
temporarily install the air cleaner assembly and the
intake air duct. 15. Start the engine, and shift to S.
16. Shift to 1st gear by pressing the paddle shifter
(downshift switch) if needed, and measure the 1st
clutch pressure at the 1st clutch pressure
inspection port (B) while holding the engine speed
at 2,000 rpm.
17. Upshift to 2nd gear by pressing the paddle shifter (upshift switch), and measure the 2nd clutch
pressure at the 2nd clutch pressure inspection port
(C) while holding the engine speed at 2,000 rpm.
1st clutch
(B)
2nd clutch
(C) 890 970 kPa
(9.1 9.9 kgf/cm ,
130 140 psi)
840 kPa
(8.6 kgf/cm ,
120 psi)
18. Turn the engine off, remove the air cleaner assembly (see page 11-345) and the intake air duct
(see page 11-348), then disconnect the A/T oil
pressure gauge from the 1st and 2nd clutch
pressure inspection ports.
19. Install the sealing bolts to the 1st and 2nd clutch pressure inspection ports with new sealing
washers, and tighten the bolts to 18 N·m (1.8 kgf·m,
13 lbf·ft). Do not reuse the old sealing washers.
20. Install the air cleaner assembly (see page 11-345) and the intake air duct (see page 11-348).
22
08/08/21 14:46:43 61SNR030_140_0214
ProCarManuals.com
DYNOMITE -2009-

µµ
µ
Pressure Fluid Pressure
Standard Service Limit Problem Probable causes
14-214Automatic Transmission
Pressure Test (cont’d)
27. Bring the engine back to an idle, then apply the
brake pedal to stop the wheels from rotating.
28. Shift to R, then release the brake pedal. Measure the 4th clutch pressure at the 4th clutch pressure
inspection port (F) while holding the engine speed
at 2,000 rpm.
4th clutch
(F) in R 890 970 kPa
(9.1 9.9 kgf/cm ,
130 140 psi) 840 kPa
(8.6 kgf/cm ,
120 psi)
29. Turn the engine off, then disconnect the A/T oil pressure gauge from the 3rd, 4th, and 5th clutch
pressure inspection ports.
30. Install the sealing bolts in the 3rd, 4th, and 5th clutch pressure inspection ports with new sealing
washers, and tighten the bolts to 18 N·m (1.8 kgf·m,
13 lbf·ft). Do not reuse the old sealing washers. 31. If the pressures are out of the service limit, the
problems and probable causes are listed in the
table.


















No or low line
pressure
Torque converter
ATF pump
Regulator valve
Torque converter
check valve
Clogged ATF strainer
No or low 1st clutch
pressure 1st clutch
O-rings
No or low 2nd clutch
pressure 2nd clutch
O-rings
No or low 3rd clutch
pressure 3rd clutch
O-rings
No or low 4th clutch
pressure 4th clutch
O-rings
No or low 5th clutch
pressure 5th clutch
O-rings
No or low 4th clutch
pressure in R Servo valve
4th clutch
O-rings
32. Install the splash shield.
33. Check the ATF level (see page 14-231).
22
08/08/21 14:46:43 61SNR030_140_0216
ProCarManuals.com
DYNOMITE -2009-