Acura RL. Manual - part 246

15. Monitor the OBD STATUS for P0735 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate PASSED?

YES - Troubleshooting is complete. If any other DTCs were indicated on step 14, go to the INDICATED
DTCS TROUBLESHOOTING.

NO - Check for poor connections and loose terminals at the input shaft (mainshaft) speed sensor, the
output shaft (countershaft) speed sensor, and the PCM, then go to step 4. If the HDS indicates NOT
COMPLETED, return to step 12 and recheck.

DTC P0741: Torque Converter Clutch Hydraulic Circuit Stuck OFF

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 4 ) through a strainer. Inspect the strainer for metal debris or excessive clutch

material.

Does the strainer have metal debris or excessive clutch material?

YES - Replace the transmission, then go to step 12.

NO - Replace the ATF (see step 6 ), then go to step 4.

4. Clear the DTC with the HDS.

5. Select Shift Solenoid D in the Miscellaneous Test Menu, and check that shift solenoid valve D operates

with the HDS.

Is a clicking sound heard?

YES - Go to step 6.

NO - Replace shift solenoid valve D (see SHIFT SOLENOID VALVE TEST AND
REPLACEMENT ), then go to step 12.

6. Run the engine until the engine coolant temperature reaches 176°F (80°C).

7. Select Clutch Pressure Control (Linear) Solenoid C in the Miscellaneous Test Menu, and test A/T clutch

pressure control solenoid valve C with the HDS.

Does the HDS indicate NORMAL?

NOTE:

Before you troubleshoot, record all freeze data and any on-board snapshot, and
review General Troubleshooting Information (see GENERAL
TROUBLESHOOTING INFORMATION ).

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission - RL

Friday, June 05, 2009 1:18:12 PM

Page 155

YES - Go to step 8.

NO - Follow the instructions indicated on the HDS by the test result, but if the HDS has not determined
the cause of the failure, go to step 11. If any part is replaced, go to step 12.

8. Test-drive the vehicle on a level road with a steady throttle at 60 mph (96 km/h) for at least 22 seconds, or

test-drive the vehicle for several minutes under the same conditions as those indicated by the freeze data.

9. Turn the ignition switch to LOCK (0). Repeat step 8, then go to step 10.

10. Monitor the OBD STATUS for P0741 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate FAILED?

YES - Repair the faulty torque converter clutch mechanism, torque converter clutch hydraulic circuit,
lock-up shift valve, or lock-up control valve, or replace the transmission, then go to step 12.

NO - Intermittent failure, the system is OK at this time. If the HDS indicates NOT COMPLETED, return
to step 8 and recheck.

11. Inspect A/T clutch pressure control solenoid valve C (see A/T CLUTCH PRESSURE CONTROL

SOLENOID VALVE C TEST ).

Does A/T clutch pressure control solenoid valve C work properly?

YES - Repair the hydraulic system related to the lock-up shift valve, lock-up control valve, and lockup
timing valve, or replace the transmission, then go to step 12.

NO - Replace A/T clutch pressure control solenoid valve C (see A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVE C REPLACEMENT ), then go to step 12.

12. Clear the DTC with the HDS.

13. Test-drive the vehicle on a level road with a steady throttle at 60 mph (96 km/h) for at least 22 seconds, or

test-drive the vehicle for several minutes under the same conditions as those indicated by the freeze data.

14. Turn the ignition switch to LOCK (0). Repeat step 13, then go to step 15.

15. Monitor the OBD STATUS for P0741 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate PASSED?

YES - Troubleshooting is complete.

NO - Return to step 5 and recheck. If the HDS indicates NOT COMPLETED, return to step 13 and
recheck.

DTC P0746: A/T Clutch Pressure Control Solenoid Valve A Stuck OFF; DTC P0747: A/T Clutch Pressure Control
Solenoid Valve A Stuck ON

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission - RL

Friday, June 05, 2009 1:18:12 PM

Page 156

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 4 ) through a strainer. Inspect the strainer for metal debris or excessive clutch

material.

Does the strainer have metal debris or excessive clutch material?

YES - Replace the transmission, then go to step 11.

NO - Replace the ATF (see step 6 ), then go to step 4.

4. Clear the DTC with the HDS.

5. Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears, then

slow down to a stop.

6. Turn the ignition switch to LOCK (0). Repeat step 5, then go to step 7.

7. Monitor the OBD STATUS for P0746 or P0747 in the DTCs/Freeze Data in A/T Mode Menu for a

pass/fail.

Does the HDS indicate FAILED?

YES - Go to step 8.

NO - Intermittent failure, the system is OK at this time. If the HDS indicates NOT COMPLETED, return
to step 5 and recheck.

8. Clear the DTC with the HDS.

9. Select Clutch Pressure Control (Linear) Solenoid A in the Miscellaneous Test Menu, and test A/T clutch

pressure control solenoid valve A with the HDS.

Does the HDS indicate NORMAL?

YES - Intermittent failure, the system is OK at this time.

NO - Follow the instructions indicated on the HDS by the test result, but if the HDS has not determined
the cause of the failure, go to step 10. If any part is replaced, go to step 11.

10. Inspect A/T clutch pressure control solenoid valve A (see A/T CLUTCH PRESSURE CONTROL

SOLENOID VALVE A TEST ).

Does A/T clutch pressure control solenoid valve A work properly?

NOTE:

Before you troubleshoot, record all freeze data and any on-board snapshot, and
review General Troubleshooting Information (see GENERAL
TROUBLESHOOTING INFORMATION ).

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission - RL

Friday, June 05, 2009 1:18:12 PM

Page 157

YES - Repair the hydraulic system related with shift valve A, or replace the transmission, then go to step
11.

NO - Replace A/T clutch pressure control solenoid valve A (see A/T CLUTCH PRESSURE
CONTROL SOLENOID VALVE A AND B REPLACEMENT ), then go to step 11.

11. Clear the DTC with the HDS.

12. Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears, then

slow down to a stop.

13. Turn the ignition switch to LOCK (0). Repeat step 12, then go to step 14.

14. Monitor the OBD STATUS for P0746 or P0747 in the DTCs/Freeze Data in A/T Mode Menu for a

pass/fail.

Does the HDS indicate PASSED?

YES - Troubleshooting is complete.

NO - Return to step 11 and recheck. If the HDS indicates NOT COMPLETED, return to step 12 and
recheck.

DTC P0751: Shift Solenoid Valve A Stuck OFF; DTC P0752: Shift Solenoid Valve A Stuck ON

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 4 ) through a strainer. Inspect the strainer for metal debris or excessive clutch

material.

Does the strainer have metal debris or excessive clutch material?

YES - Replace the transmission, then go to step 13.

NO - Replace the ATF (see step 6 ), then go to step 4.

4. Clear the DTC with the HDS.

5. Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears, then

slow down to a stop.

6. Turn the ignition switch to LOCK (0). Repeat step 5, then go to step 7.

7. Monitor the OBD STATUS for P0751 or P0752 in the DTCs/Freeze Data in A/T Mode Menu for a

pass/fail.

NOTE:

Before you troubleshoot, record all freeze data and any on-board snapshot, and
review General Troubleshooting Information (see GENERAL
TROUBLESHOOTING INFORMATION ).

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission - RL

Friday, June 05, 2009 1:18:12 PM

Page 158

Content .. 244 245 246 247 ..