DTC Troubleshooting: P1733 (45-5)

DTC P1733:  Problem in Shift Control System:


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.Check for deterioration in the quality of ATF.

Has the ATF deteriorated?


YES - Replace ATF, and test-drive the vehicle under the same conditions as those indicated by the freeze data, then recheck.


NO - Go to 4.


4.Clear the DTC in CLEAR MENU with the Honda PGM Tester or HDS.

5.Select SHIFT SOL TEST in MISC. TEST MENU, then carry out A/T SHIFT SOL D test in SHIFT SOL TEST MENU with the Honda PGM Tester or HDS.

Is a clicking sound heard?


YES - Go to 6.


NO - Faulty shift solenoid valve D, replace it. After replacing the solenoid valve, go to 11, and check that the repair has been completed.


6.Select LINEAR SOL TEST in MISC. TEST MENU, then carry out LINEAR SOL C TEST in LINEAR SOL TEST MENU.

Is the system OK?


YES - Go to 7.


NO - Go to 10.

7.Test-drive the vehicle in the [D] position in all five gears at speeds over 10 mph (16 km/h) for 20 seconds, then slow down and stop the wheels.

8.Retest-drive the vehicle in the [D] position in all five gears at 10 mph (16 km/h) for 20 seconds.

9.Check the OBD STATUS in DTCs MENU for a pass/fail test of code P1733.

Did the result fail?


YES - Repair shift valve D, or replace the transmission.n


NO - Intermittent failure, the system is OK at this time. If the tester indicates NOT COMPLETE, return to step 7 and recheck.n


10.Inspect A/T clutch pressure control solenoid valve C.

Does A/T clutch pressure control solenoid valve C work properly?


YES - Shift valves B and C may be stuck, repair hydraulic system related with shift valves B and C, or replace the transmission.n


NO - Replace A/T clutch pressure control solenoid valve C. After replacing the solenoid valve, go to 11, and check that the repair has been completed.


11.Clear the DTC in CLEAR MENU with the Honda PGM Tester or HDS.

12.Test-drive the vehicle for several minutes under the same conditions as those indicated by the freeze data.

13.Check the OBD STATUS in DTCs MENU for a pass/fail test of code P1733.

Did the result pass?


YES - The problem has been corrected.n


NO - Return to step 1 and recheck.n