ACURA CSX 2006 Service Repair Manual

(#'
 
*)
µ
µ
µ
µ
µ
µ µ
µ
DTC U0028:
YES
NO
YES
NO
YES
NO YES
NO
14-205
F-CAN Malfunction (BUS-OFF
(PCM))
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 U0028 troubleshooting in the
PGM-FI SYSTEM (see page 11-183).
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 U0028 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.
I s DT C U 0028 i nd i cat ed i n t he PGM -F I SY ST E M ?
I s DT C U 0028 i nd i cat ed i n t he A/ T SY ST E M ?
I s DT C U 0028 i nd i cat ed i n t he A/ T SY ST E M ? Does the HDS ind icate PASSED?
08/08/21 14:45:31 61SNR030_140_0207
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
µ
µ
µ
µ
µ µ
µ
DTC U0155:
YES
NO
YES
NO
YES
NO YES
NO
14-207
F-CAN Malfunction (PCM-Gauge
Control Module)
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 U0155 troubleshooting in the
PGM-FI SYSTEM (see page 11-188).
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 gauge control module 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 U0155 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 gauge
control module 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 U0155 indicated in the PGM-F I SY ST EM?
Is DT C U0155 indicated in the A/ T SY ST EM?
Is DT C U0155 indicated in the A/ T SY ST EM? Does the HDS ind icate PASSED?
08/08/21 14:45:31 61SNR030_140_0209
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-

൵൵
൵
൵ µµ
൵ ൵
൵
൵ µµ
൵ ൵
൵
µµ
൵
൵ ൵
µµ
µµ
ൠµ
൵ ൵ ൵
µ
Upshift: D Position
APP sensor A voltage: 1.3 V
APP sensor A voltage: 2.5 V
Fully-opened throttle
APP sensor A voltage: 4.4 V
Downshift: D Position APP sensor A voltage: 1.3 V
APP sensor A voltage: 2.5 V
Fully-opened throttle
APP sensor A voltage: 4.4 V
14-209
14. Review each snapshot individually, and compare the Shift Control, the APP Sensor A Voltage, and
the Vehicle Speed to the following table.
1st 2nd 14 18 km/h (9 11 mph)
2nd 3rd 29 35 km/h (18 22 mph)
3rd 4th 41 49 km/h (25 30 mph)
4th 5th 62 72 km/h (39 45 mph)
Lock-up ON 48 56 km/h (30 35 mph)
1st 2nd 24 30 km/h (15 19 mph)
2nd 3rd 49 59 km/h (30 37 mph)
3rd 4th 81 93 km/h (50 58 mph)
4th 5th 155 171 km/h (96 106 mph)
Lock-up ON 177 193 km/h (110 120 mph)
1st 2nd 54 64 km/h (34 40 mph)
2nd 3rd 100 112 km/h (62 70 mph)
3rd 4th 148 162 km/h (92 101 mph)
Lock-up OFF 46 54 km/h (29 34 mph)
5th 4th 47 57 km/h (29 35 mph)
4th 3rd 29 35 km/h (18 22 mph)
3rd1st 713km/h(48mph)
Lock-up OFF 106 118 km/h (66 73 mph)
Lock-up OFF 173 189 km/h (108 117 mph)
5th 4th 182 198 km/h (113 123 mph)
4th 3rd 123 137 km/h (76 85 mph)
3rd 2nd 84 96 km/h (52 60 mph)
2nd 1st 42 52 km/h (26 32 mph)
15. Drive the vehicle in 4th or 5th gear with the shift lever in S with the sequential sportshift mode, then
decelerate and downshift to 2nd gear by pressing
the paddle shifter (downshift switch). The
vehicle should immediately begin to slow down
from the engine braking, then slow to a stop.
16. Shift to R, accelerate from a stop at full throttle momentarily, and check for abnormal noise and
clutch slippage. 17. Park the vehicle on a slope (about 16-degrees),
apply the brake, and shift into P. Release the brake;
the vehicle should not move.
NOTE: Always use the brake to hold the vehicle,
when stopped on an incline in gear. Depending on
the grade of the incline, the vehicle could roll
backwards if the brake is released.
08/08/21 14:46:41 61SNR030_140_0211
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
 ÃŽ

(#'


)
Special Tools Required
Pressure Fluid PressureStandard Service Limit
14-211
Pressure Test
A
A/T OIL PRESSURE
GAUGE SET
07406-0020401
A/TPRESSUREHOSE,
2,210 mm
07MAJ-PY4011A
(3 required) A/T PRESSURE
HOSE ADAPTER
07MAJ-PY40120
(3 required)
A
 A/T oil pressure gauge set 07406-0020401
 A/T pressure hose, 2,210 mm 07MAJ-PY4011A
 A/T pressure hose adapter 07MAJ-PY40120
NOTE:
 Disable the VSA by pressing the VSA OFF switch (if equipped).
 VSA DTC(s) may come on during the pressure test. If the VSA(s) come on, clear the DTC(s) with the HDS.
1. Make sure the transmission fluid is filled to the proper level (see page 14-231).
2. Raise the vehicle on a lift, or apply the parking brake, block rear wheels, and raise the front of the
vehicle. Make sure it is securely supported.
3. Remove the splash shield.
4. Allow the front wheels to rotate freely.
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). Make sure the HDS communicates with the PCM. If it does not, go
to the DLC circuit troubleshooting (see page
11-204). 7. Connect the A/T oil pressure gauge to the line
pressure inspection port (A). Do not allow dust or
other foreign particles to enter the ports while
connecting the gauges.
8. Start the engine, and warm it up to normal operating temperature (the radiator fan comes on).
9. Measure the line pressure at the line pressure inspection port with the shift lever in P or N while
holding the engine speed at 2,000 rpm.
NOTE: Higher pressure may be indicated if
measurements are made in shift lever position
other than P or N.
Line 900 960 kPa (9.2 9.8 kgf/cm ,
130 140 psi) 850 kPa
(8.7 kgf/cm ,
120 psi)
10. Turn the engine off, then disconnect the A/T oil pressure gauge from the line pressure inspection
port.
11. Install the sealing bolt to the line pressure inspection port with a new sealing washer, and
tighten the bolt to 18 N·m (1.8 kgf·m, 13 lbf·ft). Do
not reuse the old sealing washer.
(cont’d)
22
08/08/21 14:46:42 61SNR030_140_0213
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-

´
µ µ
µ


Pressure Fluid Pressure
Standard
Service Limit
14-213
D
E
F
21. Connect the A/T oil pressure gauge to the 3rdclutch pressure inspection port (D) and the 5th
clutch pressure inspection port (E).
22. Connect the A/T oil pressure gauge to the 4th clutch pressure inspection port (F). 23. Start the engine, and shift to S.
24. Upshift to 3rd gear by pressing the paddle shifter
(upshift switch), and measure the 3rd clutch
pressure at the 3rd clutch pressure inspection port
(D) while holding the engine speed at 2,000 rpm.
25. Upshift to 4th gear, and measure the 4th clutch pressure at the 4th clutch pressure inspection port
(F) while holding the engine speed at 2,000 rpm.
26. Upshift to 5th gear, and measure the 5th clutch pressure at the 5th clutch pressure inspection port
(E) while holding the engine speed at 2,000 rpm.
890 970 kPa
(9.1 9.9 kgf/cm ,
130 140 psi) 840 kPa
(8.6 kgf/cm ,
120 psi)
(cont’d)
3rdclutch(D)
4thclutch(F)
5thclutch(E)22
08/08/21 14:46:43 61SNR030_140_0215
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-