This code is caused by an electrical circuit problem and cannot be caused by a mechanical problem in the transmission.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P281D Shift Solenoid Valve O/P (Pressure Control Solenoid H) Control Circuit Low
P281E Shift Solenoid Valve O/P (Pressure Control Solenoid H) Control Circuit High
1.
Problem verification:
Problem verification
?1.
Turn the vehicle to the ON mode.
?2.
Clear the DTC with the HDS.
?3.
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.
?4.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P281D Shift Solenoid Valve O/P (Pressure Control Solenoid H) Control Circuit Low
P281E Shift Solenoid Valve O/P (Pressure Control Solenoid H) Control Circuit High
Is DTC P281D indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections or loose terminals between the shift solenoid valve O/P and the PCM. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.?
2.
Shift solenoid valve O/P check:
Shift solenoid valve O/P check
?1.
Turn the vehicle to the OFF (LOCK) mode.
?2.
Jump the SCS line with the HDS, and wait more than 1 minute.
NOTE: This step must be done to protect the PCM from damage.
?3.
Disconnect the following connector.
PCM connector C (51P)
?4.
Measure the resistance between test points 1 and 2.
The shift solenoid valve O/P is OK. Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or replace the original PCM.?
NO
Go to step 3.
3.
Shorted wire check (SOL C line):
Shorted wire check (SOL C line)
?1.
Disconnect the following connector.
Solenoid wire harness A 8P connector
?2.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
Solenoid wire harness A 8P connector: disconnected
The shift solenoid valve O/P is OK. Repair a short to body ground in the SHC+ wire between the solenoid wire harness A 8P connector and the shift solenoid valve O/P.?