DTC P0752
DTC P0752: Shift Solenoid Valve A Stuck ON
General Description
| Capacity of Over Drive Clutch | Shift Solenoid Valve A | ||
| ON (12 V) | OFF (0 V) | ||
| Shift Solenoid Valve B | ON (12 V) | ON | OFF |
| OFF (0 V) | OFF | OFF | |
Shift solenoid valve A is installed on the transmission housing. It is controlled by the ON/OFF signal from the powertrain control module (PCM) to apply line pressure to shift valve A. The signal from the PCM is output so that the line pressure is supplied to the clutch piston under the condition that overdrive clutch engagement is requested during running at 44 mph (70 km/h) or more. When the signal to shift solenoid valve A from the PCM is on, and the line pressure is applied to shift valve A, it operates against the shift valve A spring. When the signal to shift solenoid valve A from the PCM is off, and the line pressure is discharged, shift valve A is inactive. The PCM monitors the transmission fluid pressure sensor and detects a shift solenoid valve A stuck ON failure and stores a DTC when the transmission fluid pressure sensor is specified pressure or more though the shift solenoid valve A is outputting OFF signal in the over drive clutch engagement process in response to a request for engagement of the over drive clutch.
Monitor Execution, Sequence, Duration, DTC Type
| Execution | Continuous | |
| Sequence | None | |
| Duration | 1.6 seconds or more | |
| DTC Type | One drive cycles, MIL off, shift position indicator blinks | |
Enable Conditions
| Condition | Minimum | Maximum | |
|---|---|---|---|
| Vehicle speed [VEHICLE SPEED] | 44 mph (70 km/h) | - | |
| 12 volt battery voltage [BATTERY VOLTAGE] | 11 V | - | |
| Over drive clutch | ON | ||
| State of the vehicle | Engine driving mode | ||
[ ]: HDS Parameter
Malfunction Threshold
When the transmission fluid pressure sensor is specified pressure or more continuously for 1.6 seconds or more though the shift solenoid valve A is outputting OFF signal in the over drive clutch engagement process in response to a request for engagement of the over drive clutch.
Possible Cause
- Shift solenoid valve A stuck on
- Shift valve A failure
Confirmation Procedure
Operating Condition
- Enter the maintenance mode, then start the engine. Hold the engine speed [ENGINE SPEED] at 3, 000 RPM without load (in P or N) until the radiator fan comes on, then let it idle.
- Drive the vehicle at a steady speed of 44 mph (70 km/h) or more for at least 10 seconds with engine drive mode.
- Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.
With the HDS
None.
Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the shift position indicator blinks and a Pending DTC, a Confirmed DTC, and the freeze data are stored in the PCM memory. The MIL does not come on.
Conditions for clearing the DTC
The shift position indicator comes off by turning the vehicle to the OFF (LOCK) mode. 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.