DTC Troubleshooting

DTC P1730: Problem in Shift Control System:

^ Shift Solenoid Valves A or D Stuck OFF
^ Shift Solenoid Valve B Stuck ON
^ Shift Valves A, B, or D Stuck

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

NO - Replace the ATF, then go to step 4.

4. Turn the ignition switch ON (II).
5. Clear the DTC with the HDS.
6. Test-drive the vehicle in the D position through all five gears at speeds over 12 mph (20km/h) for more than 20 seconds, then slow down to a stop.
7. Repeat the test-drive in step 6.
8. Monitor the OBD STATUS for P1730 in the DTCs MENU with the HDS.
Does the screen indicate FAILED?

YES - Go to step 9.

NO - 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. Choose Shift Solenoid A in Miscellaneous Test Menu, and check that shift solenoid valve A operates with the HDS.
Is a clicking sound heard?

YES - Go to step 11.

NO - Replace shift solenoid valve A, then go to step 16.

11. Choose Shift Solenoid B in Miscellaneous Test Menu, and check that shift solenoid valve B operates with the HDS.
Is a clicking sound heard?

YES - Go to step 12.

NO - Replace shift solenoid valve B, then go to step 16.

12. Choose Shift Solenoid D in Miscellaneous Test Menu, and check that shift solenoid valve D operates with the HDS.
Is a clicking sound heard?

YES - Go to step 13.

NO - Replace shift solenoid valve D, then go to step 16.

13. Test-drive the vehicle in the D position through all five gears at speeds over 12 mph (20km/h) for more than 20 seconds, then slow down to a stop.
14. Repeat the test-drive in step 13.
15. Monitor the OBD STATUS for P1730 in the DTCs MENU with the HDS.
Does the result indicate FAILED?

YES - Repair the hydraulic system related with shift valves A, B, and D, or replace the transmission, then go to step 16.

NO - Intermittent failure, the system is OK at this time. If the screen indicates NOT COMPLETED, go to step 13.

16. Reconnect all connectors.
17. Turn the ignition switch ON (II).
18. Clear the DTC with the HDS.
19. Test-drive the vehicle in the D position through all five gears at speeds over 12 mph (20km/h) for more than 20 seconds, then slow down to a stop.
20. Repeat the test-drive in step 19.
21. Check for DTCs with the HDS.
Is DTC P1730 indicated?

YES - Go to step 9.

NO - Go to step 22.

22. Monitor the OBD STATUS for P1730 in the DTCs MENU with the HDS.
Does the screen indicate PASSED?

YES - Troubleshooting is complete. If any other DTCs were indicated in step 21, 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 19.