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
P2720 Pressure Control Solenoid "D" Control Circuit Low
P2721 Pressure Control Solenoid "D" Control Circuit High
1.
Problem verification:
Problem verification
?1.
Turn the vehicle to the ON mode.
?2.
Clear the DTC with the HDS.
?3.
Start the engine, and wait for at least 1 second.
?4.
Check for Pending or Confirmed DTCs with the HDS.
DTC Description
Confirmed DTC
Pending DTC
Freeze Frame
P2720 Pressure Control Solenoid "D" Control Circuit Low
P2721 Pressure Control Solenoid "D" Control Circuit High
Is DTC P2720 or P2721 indicated?
YES
The failure is duplicated. Go to step 2.
NO
Intermittent failure, the system is OK at this time. Check for poor connections and loose terminals between the CVT lock-up clutch control solenoid valve and the TCM. 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.
Determine possible failure area (TCM, short in LCCLS line, open in LCCLS/LCC+ line):
Determine possible failure area (TCM, short in LCCLS line, open in LCCLS/LCC+ line)
?1.
Turn the vehicle to the OFF (LOCK) mode.
?2.
Disconnect the following connector.
TCM 50P connector
?3.
Measure the resistance between test points 1 and 2.
Check for any authorized service information related to the DTCs or symptoms you are troubleshooting, or substitute a known-good TCM, then recheck. If this DTC goes away and the TCM was substituted, replace the original TCM.?
Less than 4.6 ?
Go to step 3.
More than 6.3 ?
Go to step 4.
3.
Shorted wire check (LCCLS line):
Shorted wire check (LCCLS line)
?1.
Disconnect the following connector.
CVT lock-up clutch control solenoid valve 2P connector
?2.
Check for continuity between test points 1 and 2.
Test condition
Vehicle OFF (LOCK) mode
CVT lock-up clutch control solenoid valve 2P connector: disconnected
