P1731

DTC P1731: Problem in Shift Control System
^ Shift Solenoid Valve E Stuck OFF
^ Shift Valve E Stuck
^ A/T Clutch Pressure Control Solenoid Valve A Stuck OFF

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review General Troubleshooting Information.

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 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, then go to step 4.

4. Clear the DTC with the HDS.
5. Test-drive the vehicle for several minutes 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), and repeat step 5, then go to step 7.
7. Monitor the OBD STATUS for P1731 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 Shift Solenoid E in the Miscellaneous Test Menu, and check that shift solenoid valve E operates with the HDS.

Is a clicking sound heard?

Yes - Go to step 10.

No - Replace shift solenoid valve E, then go to step 12.

10. 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 11. If any part is replaced, go to step 12.

11. Inspect A/T clutch pressure control solenoid valve A.

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

Yes - Repair the hydraulic system related with shift valve E, or replace the transmission, then go to step 12.

No - Replace A/T clutch pressure control solenoid valve A, then go to step 12.

12. Clear the DTC with the HDS.
13. Test-drive the vehicle for several minutes with the shift lever in D, and let the transmission shift through all five gears. Then slow down to a stop.
14. Turn the ignition switch to LOCK (0), and repeat step 13, then go to step 15.
15. Monitor the OBD STATUS for P1731 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 1 and recheck. If the HDS indicates NOT COMPLETED, return to step 13 and recheck.