engine ACURA CSX 2006 Service Repair Manual

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YES
NO
YES
NO
YES
NO
YES
NO
DTC P1732:
14-19814-198Automatic Transmission
DTC Troubleshooting (cont’d)
12. Turn the ignition switch to ON (II).
13. Clear the DTC with the HDS.
14. Test-drive the vehicle with the shift lever in D, and
let the transmission shift through all five gears.
15. Check for Temporary DTCs or DTCs with the HDS.
Go to step 8.
Go to step 16.
16. Monitor the OBD STATUS for P1731 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 15,
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 14.  Shift Solenoid Valves B or C Stuck ON
 Shift Valves B or C Stuck
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 13.
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 P1732 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.Problem in Shift Control System:
Is DTC P1731 indicated?
Does the HDS ind icate PASSED? Does t he st r ai ner hav e met al d ebr i s or ex cessi v eclutch mater ial?
Does the HDS ind icate F AILED?
08/08/21 14:45:30 61SNR030_140_0200
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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 ?
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YES
NO
YES
NO
YES
NO
YES
NO
DTC P1734:
14-20114-201
12. Turn the ignition switch to ON (II).
13. Clear the DTC with the HDS.
14. Test-drive the vehicle with the shift lever in D, and
let the transmission shift through all five gears.
15. Check for Temporary DTCs or DTCs with the HDS.
Go to step 8.
Go to step 16.
16. Monitor the OBD STATUS for P1733 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 15,
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 14.  Shift Solenoid Valves B or C Stuck OFF
 Shift Valves B or C Stuck
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 13.
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 P1734 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.
(cont’d)Problem in Shift Control System:
Is DTC P1733 indicated?Does the HDS ind icate PASSED? Does t he st r ai ner hav e met al d ebr i s or ex cessi v eclutch mater ial?
Does the HDS ind icate F AILED?
08/08/21 14:45:30 61SNR030_140_0203
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DTC P2122:
YES
NO
YES
NO
YES
NO YES
NO
14-203
Accelerator Pedal Position (APP)
Sensor A (Throttle Position Sensor D) Circuit
Low 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 P2122 troubleshooting in the
electronic throttle control system (ETCS) (see page
11-253).
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 P2122 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 P2122 indicated in the PGM-F I SY ST EM?
Is DT C P2122 indicated in the A/ T SY ST EM?
Is DT C P2122 indicated in the A/ T SY ST EM? Does the HDS ind icate PASSED?
08/08/21 14:45:31 61SNR030_140_0205
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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
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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
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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
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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
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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
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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.
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