2ML70 - Automatic Transmission
DTC P2714 or P2715
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions Diagnostic Procedure Instructionsprovides an overview of each diagnostic category.
DTC Descriptors
DTC P2714
- Pressure Control (PC) Solenoid 4 - Stuck Off
DTC P2715
- Pressure Control (PC) Solenoid 4 - Stuck On
Circuit/System Description
The clutch pressure control solenoid 4 is part of the control solenoid valve assembly and is not serviced separately. The transmission control module (TCM) supplies 12 V to the clutch pressure control solenoid 4 through the high side driver 1 circuit. The TCM controls the pressure control solenoid 4 through the clutch pressure control solenoid 4 control circuit. The normally low clutch pressure control solenoid 4 flows fluid to the 1-3 Clutch Regulator Valve when commanded ON and exhausts fluid when commanded OFF. The 1-3 Clutch Regulator Valve regulates the transmission fluid pressure to the 1-3 clutch.
Conditions for Running the DTC
* The engine run time is greater than 1 second.
* Shift solenoid valve 1 is not in a transition state.
* The transmission line pressure is greater than 370 kPa (54 psi) and not fluctuating by greater than 30 kPa (4 psi).
* Propulsion is active.
P2714
The clutch pressure control solenoid 4 commanded pressure is greater than 1800 kPa (261 psi) for 4.5 seconds.
P2715
The clutch pressure control solenoid 4 commanded pressure is less than 5 kPa (1 psi) for 4.5 seconds.
Conditions for Setting the DTC
P2714 - Condition 1
The clutch pressure control solenoid 4 commanded pressure is 1800 kPa (261 psi) and the TFP switch 4 state parameter is Low for 30 seconds.
P2714 - Condition 2
The clutch pressure control solenoid 4 commanded pressure is 1800 kPa (261 psi) and the TFP switch 4 state parameter is Low for 0.5 seconds greater than 5 times during a key cycle.
P2715 - Condition 1
The clutch pressure control solenoid 4 commanded pressure is 5 kPa (1 psi) and the TFP switch 4 state parameter is High for 36 seconds.
P2715 - Condition 2
The clutch pressure control solenoid 4 commanded pressure is 5 kPa (1 psi) and the TFP switch 4 state parameter is High for 1.25 seconds greater than 5 times during a key cycle.
Action Taken When the DTC Sets
* P2714 and P2715 are Type B DTCs.
* The transmission control module commands maximum line pressure.
* The transmission control module freezes transmission adaptive functions.
Conditions for Clearing the DIC/DTC
P2714 and P2715 are Type B DTCs.
Diagnostic Aids
When attempting to set transmission performance DTCs, observe the Freeze Frame and Failure Records to assist in duplicating the failure conditions.
Reference Information
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References Programming and Relearningfor scan tool information.
Special Tools
DT-47825 Control Solenoid Test Plate
Circuit/System Verification
1. Verify DTC P0721, P0722, P0723, P0966, P0967, P0969, P0970, P0971, P0973, P0974, P0976, P0977, P2720, P2721, P2728, P2729, or P2730 is not set.
• If the DTC is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.
2. Perform the Transmission Fluid Level and Condition Check Transmission Fluid Level and Condition Check to verify correct fluid level.
3. Perform the Line Pressure Check Line Pressure Check to verify correct oil pressure.
4. Perform the Control Solenoid Valve and Transmission Control Module Assembly Inspection Control Solenoid Valve and Transmission Control Module Assembly Inspection to verify control solenoid valve assembly condition.
5. Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test to verify control solenoid valve assembly function.
6. Inspect the 1-3 clutch assembly for damage.
7. Listed in the chart below are conditions for each component that could set DTC P2714 and P2715. Carefully inspect each component for that condition. Repair or replace as necessary.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the diagnostic procedure.
* Control Solenoid Valve and Transmission Control Module Assembly Replacement Control Solenoid Valve and Transmission Control Module Assembly Replacementfor Control Valve Body repair or replacement.
* Control Module References Programming and Relearningfor Control Solenoid Valve Assembly replacement, programming and setup.
* Perform the Reset Transmission Adapts Reset Procedure following all transmission related repairs.