DTC Troubleshooting: P0796
DTC P0796: A/T Clutch Pressure Control Solenoid Valve C Stuck OFF
NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot with the HDS, and review the General Troubleshooting Information.
If DTC P0796 is stored in the PCM, the transmission does not shift to any gear other than 2nd or 5th gear because of the fail-safe function, but if that DTC is a Pending DTC, the transmission does not shift to any gear other than 3rd or 6th gear because of the fail-safe function.

DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P0796 A/T Clutch Pressure Control Solenoid Valve C Stuck OFF
      

1.
ATF check:

ATF check
?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
     
     
     
     
NO
     
     
     
Replace the ATF, then go to step 2.
2.
Problem verification:

Problem verification
?1.
Press the engine start/stop button to select the ON mode.

?2.
Clear the DTC with the HDS.


?3.
Select Clutch Pressure Control (Linear) Solenoid Valve C in the Miscellaneous Test Menu, and test A/T clutch pressure control solenoid valve C with the HDS.

  

Does the HDS indicate NORMAL?

     
YES
     
     
     
Intermittent failure, the system is OK at this time.?
     
NO
     
     
     
The failure is duplicated. Faulty A/T clutch pressure control solenoid valve C, shift valve C, D inhibitor valve, reverse inhibitor valve, or shift fork shaft. Replace the secondary valve body (A/T clutch pressure control solenoid valve C), the main valve body (shift valve C, D inhibitor valve, or reverse inhibitor valve), the regulator valve body (shift fork shaft), or the transmission. If replacing the main valve body or the regulator valve body, clean off any metal debris or excessive clutch material inside the transmission, the ATF cooler, the ATF hoses, the ATF pipes, and the hydraulic circuit. Then, replace the main valve body or the regulator valve body and the torque converter.?