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: Record all freeze data and review General Troubleshooting Information before you troubleshoot.

1. Warm up the engine to normal operating temperature (the radiator fan comes on).
2. Check to be sure that the transmission is filled to the proper level, and check for fluid leaks.
3. Drain the ATF through a strainer. Inspect the ATF and strainer for metal debris or burnt fluid.
Has the ATF deteriorated?
YES - Replace ATF, and go to step 4.
NO - Go to step 8.
4. Clear the DTC with the HDS.
5. Test-drive the vehicle in the D position in all five gears at speeds over 12 mph (20 km/h) for more than 20 seconds, then slow down to a stop.
6. Retest-drive the vehicle in the [D] position in all five gears at speeds over 12 mph (20 km/h) for more than 20 seconds, then slow down to a stop.
7. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P1730.
Did the result indicate a fail?
YES - Go to step 8.
NO - Intermittent failure, the system is OK at this time. If the tester indicates NOT COMPLETE, return to step 5 and recheck.
8. Clear the DTC with the HDS.
9. Select SHIFT SOL TEST in MISC. TEST MENU, then carry out A/T SHIFT SOL A test in SHIFT SOL TEST MENU 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 SOL TEST in MISC. TEST MENU, then carry out A/T SHIFT SOL B test in SHIFT SOL TEST MENU 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 SOL TEST in MISC. TEST MENU, then carry out A/T SHIFT SOL D test in SHIFT SOL TEST MENU 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 in the [D] position in all five gears at speeds over 12 mph (20 km/h) for more than 20 seconds, then slow down to a stop.
13. Retest-drive the vehicle in the [D] position in all five gears at speeds over 12 mph (20 km/h) for more than 20 seconds, then slow down to a stop.
14. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P1730.
Did the result indicate a fail?
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 tester indicates NOT COMPLETE, return to step 12 and recheck.
15. Clear the DTC with the HDS.
16. Test-drive the vehicle in the [D] position in all five gears at speeds over 12 mph (20 km/h) for more than 20 seconds, then slow down to a stop.
17. Retest-drive the vehicle in the [D] position in all five gears at speeds over 12 mph (20 km/h) for more than 20 seconds, then slow down to a stop.
18. Check the OBD STATUS in DTCs MENU for a pass/fail test of code P1730.
Did the result indicate a pass?
YES - The problem has been corrected.
NO - Return to step 1 and recheck.