Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC P0796
DTC P0796:Â Pressure Control Solenoid Valve "C" Performance or Stuck OFF
General DescriptionÂ
The CVT clutch pressure control solenoid valve controls hydraulic pressure to the forward clutch and the reverse brake. The CVT clutch pressure control solenoid valve is controlled by duty cycle output. The spool in the CVT clutch pressure control solenoid valve moves the valve according to the current, and produces hydraulic pressure in proportion to the current. To supply proper forward clutch/reverse brake oil pressure, the powertrain control module (PCM) outputs a CVT clutch pressure control solenoid valve oil pressure control signal. If the torque converter turbine speed and drive pulley speed does not match when forward clutch/reverse brake is engaged at a specified vehicle speed condition, the PCM detects a CVT clutch pressure control solenoid valve stuck OFF failure and stores a DTC.
Monitor Execution, Sequence, Duration, DTC Type, OBD StatusÂ
| Execution | Continuous |
| Sequence | None |
| Duration | 30 seconds or less |
| DTC Type | Two drive cycles, MIL on, A/T gear position indicator blinks |
| OBD Status | PASSED/FAILED/NOT COMPLETED (STILL TESTING) |
Enable ConditionsÂ
| Condition | Minimum | Maximum | |
|---|---|---|---|
| Engine speed [Engine Speed] | 500 rpm | - | |
| Forward clutch/reverse brake commanded pressure | 206 kPa (2.1 kgf/cm 2, 29.9 psi) | - | |
| Vehicle speed [Vehicle Speed] | - | 1 mph (3 km/h) | |
| Shift lever position | Without paddle shifter | D, S, L, R | |
| With paddle shifter | D, S, R | ||
| No active DTCs set (prevents monitor from running) | P0501, P0502, P0705, P0706, P0716, P0717, P0746, P0777, P0780, P0792, P0793, P0962, P0963, P0966, P0967, P0970, P0971, P1898, P1899 | ||
[ ]: HDS Parameter
Malfunction ThresholdÂ
The rotation speed between the torque converter turbine speed [Torque Converter Turbine Speed] and the drive pulley speed [Input Shaft (Drive Pulley) Speed rpm] is 250 rpm or more.
Possible CauseÂ
NOTE:Â The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
- CVT clutch pressure control solenoid valve stuck off
Confirmation ProcedureÂ
Operating ConditionÂ
- Start the engine.
- With the brake pedal pressed, place the shift lever from N to D, and wait for at least 30 seconds.
- Turn the vehicle to the OFF (LOCK) mode.
- Repeat Driving Pattern steps 1 through 2.
With the HDSÂ
None.
Diagnosis DetailsÂ
Conditions for setting the DTCÂ
When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the PCM memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.
Conditions for clearing the DTCÂ
The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command or by disconnecting the 12 volt battery.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.