P0766

DTC P0766: Shift Solenoid Valve D Stuck OFF

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, 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 12.

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

4. Turn the ignition switch to ON (II).
5. Clear the DTC with the HDS.
6. Select Shift Solenoid Valve D in the Miscellaneous Test Menu, and check it operates with the HDS.

Is a clicking sound heard?

YES - Go to step 7.

NO - Replace shift solenoid valve D, then go to step 10.

7. Start the engine, and shift to N. Then shift to R and drive the vehicle for at least 2 seconds. Slow the vehicle down to a stop. Then drive the vehicle in D, and let the transmission shift through all five gears.
8. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 7, then go to step 9.
9. Monitor the OBD STATUS for P0766 in the DTCs MENU with the HDS.

Does the HDS indicate FAILED?

YES - Repair shift valve D, or replace the transmission, then go to step 12.

NO - If the HDS indicates PASSED, intermittent failure, the system is OK at this time. If the HDS indicates NOT COMPLETED, go to step 7.

10. Turn the ignition switch to ON (II).
11. Clear the DTC with the HDS.
12. Start the engine, and shift to N. Then shift to R and drive the vehicle for at least 2 seconds. Slow the vehicle down to a stop. Then drive the vehicle in D, and let the transmission shift through all five gears.
13. Turn the ignition switch to LOCK (0). Repeat the test-drive in step 12, then go to step 14.
14. Check for DTCs with the HDS.

Is DTC P0766 indicated?

YES - Go to step 5.

NO - Go to step 15.

15. Monitor the OBD STATUS for P0766 in the DTCs MENU with the HDS.

Does the HDS indicate PASSED?

YES - Troubleshooting is complete. If any other DTCs were indicated in step 14, go to the indicated DTC's troubleshooting.

NO - If the HDS indicates FAILED, go to step 5. If the HDS indicates NOT COMPLETED, go to step 12.