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Acura CSX. Manual - part 280

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−

YES

DTC P1734:

14-201

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.

Problem in Shift Control System:

Is DT C P17 33 indicated?

Does the HDS indicate PASSED?

Does the str ainer have metal debr is or excessive
clutch mater ial?

Does the HDS indicate F AILED?

08/08/21 14:45:30 61SNR030_140_0203

−

YES

14-202

Automatic Transmission

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 hear d?

Does the HDS indicate F AILED?

Is DT C P17 34 indicated?

Does the HDS indicate PASSED?

08/08/21 14:45:31 61SNR030_140_0204

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DTC P2122:

YES

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?

Does the HDS indicate PASSED?

08/08/21 14:45:31 61SNR030_140_0205

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−

DTC P2123:

YES

14-204

Automatic Transmission

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

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?

Does the HDS indicate PASSED?

08/08/21 14:45:31 61SNR030_140_0206

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