P1730

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 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 16.

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 P1730 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 A in the Miscellaneous Test Menu, and check that shift solenoid valve A operates with the HDS.

Is a clicking sound heard?

Yes - Go to step 10.

No - Replace shift solenoid valve A, then go to step 15.

10. Select Shift Solenoid B in the Miscellaneous Test Menu, and check that shift solenoid valve B operates with the HDS.

Is a clicking sound heard?

Yes - Go to step 11.

No - Replace shift solenoid valve B, then go to step 15.

11. 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 12.

No - Replace shift solenoid valve D, then go to step 15.

12. 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.
13. Turn the ignition switch to LOCK (0), and repeat step 12, then go to step 14.
14. Monitor the OBD STATUS for P1730 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail.

Does the HDS indicate FAILED?

Yes - Repair hydraulic system related with shift valves A, B, and D, or replace the transmission, then go to step 15.

No - Intermittent failure, the system is OK at this time. If the HDS indicates NOT COMPLETED, return to step 12 and recheck.

15. Clear the DTC with the HDS.
16. 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.
17. Turn the ignition switch to LOCK (0), and repeat step 16, then go to step 18.
18. Monitor the OBD STATUS for P1730 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 16 and recheck.