2006 ACURA CSX ignition

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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 ?
08/08/21 14:45:30 61SNR030_140_0202
ProCarManuals.com
DYNOMITE -2009-

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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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DYNOMITE -2009-

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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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DYNOMITE -2009-

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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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DYNOMITE -2009-

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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
ProCarManuals.com
DYNOMITE -2009-

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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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DYNOMITE -2009-

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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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DYNOMITE -2009-

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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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DYNOMITE -2009-