DTC Advanced Diagnostics: P281E
DTC P281E:Shift Solenoid Valve O/P (Pressure Control Solenoid "H") Control Circuit High

General Description

Transmission fluid pump volume changes by shift solenoid valve O/P ON/OFF control
Transmission fluid pump volume
Shift Solenoid Valve O/P
High
OFF
Low
ON

The shift solenoid valve O/P controls the drain circuit close/open commanded by the powertrain control module (PCM) ON/OFF commands. The transmission fluid pump volume is changed by switching the shift solenoid valve O/P ON/OFF control. The PCM commands the driver circuit to turn on the shift solenoid valve O/P. The circuit diagnoses malfunctions such as a circuit short or open, and sends back a return signal during the PCM's command. When the return signal does not match the PCM command to turn OFF the shift solenoid valve O/P, the PCM detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status
Execution
Continuous
Sequence
None
Duration
1 second or more
DTC Type
One drive cycle, MIL off, A/T gear position indicator blinks
OBD Status
PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Enable Conditions
Condition
Minimum
Maximum
Battery voltage
[BATTERY VOLTAGE]
10.0 V
–
No active DTCs set (prevents monitor from running)
P0716, P0717, P0746, P0777, P0780, P0792, P0793, P0796, P0962, P0963, P0966, P0967, P0970, P0971, P1898, P1899, P281D
[ ]: HDS Parameter

Malfunction Threshold
The return signal does not match the command to turn OFF shift solenoid valve O/P for at least 1 second.

Possible Cause
NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
Shift solenoid valve O/P SOL C line open (includes connector loose connection or disconnection)
Shift solenoid valve O/P internal circuit open
PCM internal circuit failure

Confirmation Procedure
Operating Condition
1.
Start the engine.
2.
Shift to P, and wait for at least 1 second.
With the HDS
Select the Shift Solenoid Valve O/P Test in the Miscellaneous Test Menu, and check that the shift solenoid valve O/P operates with the HDS.

Diagnosis Details
Conditions for setting the DTC
When a malfunction is detected, the A/T gear 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 A/T gear position indicator comes off by turning the ignition switch to LOCK (0), or pressing the engine start/stop button to select the OFF mode. The Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.