| DTC P1734: | Problem in Shift Control System: |
| 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 contain metal debris or excessive clutch material? YES - Replace the transmission.n NO - Replace the ATF, then go to 4. |
| 4. | Clear the DTC with the HDS. |
| 5. | Test-drive the vehicle in the D position through all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop. |
| 6. | Retest-drive the vehicle in the D position through all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop. |
| 7. | Monitor the OBD status for P1734 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail. Does the result indicate FAILED? YES - Go to 8. NO - Intermittent failure, the system is OK at this time. If the tester indicates NOT COMPLETED, return to 5 and recheck.n |
| 8. | Clear the DTC with the HDS. |
| 9. | Choose Shift Solenoid B in Miscellaneous Test Menu, and check that the shift solenoid valve B operates with the HDS. Is a clicking sound heard? YES - Go to 10. NO - Replace shift solenoid valve B, then go to 14. |
| 10. | Choose Shift Solenoid C in Miscellaneous Test Menu, and check that the shift solenoid valve C operates with the HDS. Is a clicking sound heard? YES - Go to 11. NO - Replace shift solenoid valve C, then go to 14. |
| 11. | Test-drive the vehicle in the D position through all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop. |
| 12. | Retest-drive the vehicle in the D position through all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop. |
| 13. | Monitor the OBD status for P1734 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail. Does the result indicate FAILED? YES - Repair hydraulic system related with shift valves B and C, or replace the transmission, then go to 14. NO - Intermittent failure, the system is OK at this time. If the tester indicates NOT COMPLETED, return to 11 and recheck.n |
| 14. | Clear the DTC with the HDS. |
| 15. | Test-drive the vehicle in the D position through all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop. |
| 16. | Retest-drive the vehicle in the D position through all five gears at speeds over 20 km/h (12 mph) for more than 20 seconds, then slow down to a stop. |
| 17. | Monitor the OBD status for P1734 in the DTCs/Freeze Data in A/T Mode Menu for a pass/fail. Does the result indicate PASSED? YES - Troubleshooting is complete.n NO - Return to 8 and recheck. |