Automatic Transmission

DTC P1731: Problem in Shift Control System:
^ Shift Solenoid Valve E Stuck ON
^ 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 14.

NO - Replace the ATF, 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. Turn the ignition switch to LOCK (0), and repeat the test-drive in step 6.
8. Monitor the OBD STATUS for P1731 in the DTCs MENU with the HDS.

Does the screen indicate FAILED?

YES - Go to step 9.

NO - If the screen indicates PASSED, intermittent failure, the system is OK at this time. If the screen indicates NOT COMPLETED, go to step 6.

9. Clear the DTC with the HDS.
10. 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 11.

NO - Replace shift solenoid valve E, then go to step 13.

11. 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 screen 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 tester has not determined the cause of the failure, go to step 12. If any part was replaced, go to step 13.

12. Inspect 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 13.

13. Reconnect all connectors.
14. Turn the ignition switch to ON (II).
15. Clear the DTC with the HDS.
16. Test-drive the vehicle with the shift lever in D, and let the transmission shift through all five gears.
17. Turn the ignition switch to LOCK (0), and repeat the test-drive in step 16.
18. Check for DTCs with the HDS.

Is DTC P1731 indicated?

YES - Go to step 9.

NO - Go to step 19.

19. Monitor the OBD STATUS for P1731 in the DTCs MENU with the HDS.

Does the screen indicate PASSED?

YES - Troubleshooting is complete. If any other DTCs were indicated in step 18, go to the indicated DTC's troubleshooting.

NO - If the screen indicates FAILED, go to step 9. If the screen indicates NOT COMPLETED, go to step 16.