Fix P2714: Mechanic’s solutions that WORKED

The P2714: Pressure Control Solenoid ‘D’ Performance/Stuck Off indicates a problem with the ‘D’ pressure control solenoid in the transmission. This solenoid helps regulate the hydraulic pressure in the transmission, and if it’s not working correctly, the transmission might not shift properly, leading to poor vehicle performance and potential damage.

P2714 quick overview

Meaning	P2714: Pressure Control Solenoid ‘D’ Performance/Stuck Off
Is it serious?	Yes, this code is serious as it can lead to transmission performance issues and potential vehicle breakdown.
Possible causes	– Faulty pressure control solenoid – Inadequate transmission fluid level or quality – Internal transmission mechanical faults – Blockage in the transmission valve body – Faulty Transmission Control Module (TCM) – Electrical issues in the transmission circuit
How to diagnose?	Check Transmission Fluid: Verify the level and condition of the transmission fluid. Inspect Solenoid and Valve Body: Examine the pressure control solenoid and valve body for blockages or damage. Scan for Additional Codes: Use a diagnostic scanner to check for other related transmission codes. Assess TCM and Wiring: Evaluate the Transmission Control Module and wiring for faults or damage. Perform Pressure Tests: Conduct hydraulic pressure tests to check for internal transmission issues. Consider TCM Reflash: If applicable, reflash the TCM with updated software.

How to fix P2714 – learn from mechanics

I looked into P2714 service cases at iatn.com website where in the private forums the mechanics seek advice from other mechanics. I looked up a bunch of cases to help you decide how to fix your issue and see what would a real mechanic do to solve it.

Case #1: Toyota

Vehicle Information: 2007 Toyota Tundra SR5 5.7L Electronic

Issue + Repair History:

• Check engine light and VSC on, truck in limp home mode.
• Codes P0751 and P2714 were found.
• Checked wire connector at transmission, no problems detected.
• Cleared codes, but they returned immediately.
• Performed TSB 0170-09 and reprogrammed computer with updates.

Other OBD2 Codes + Test Results:

• P0751 – Shift solenoid “A” performance or stuck.
• P2714 – Pressure control solenoid “D” performance or stuck off.

Suggestions to Fix Issue:

• Check fluid level and consider replacing the transmission with factory parts.
• Look into Transmission Control Module (TCM) issues.
• Replacing the transmission has resolved similar issues in other cases.

Final Fix:

• Customer chose to take the truck to another service provider for a transmission fix at a lower cost.
• The recommended solution was a transmission replacement, but the customer opted for a different route.

Case #2: Toyota

Vehicle Information: 2008 Toyota Sienna CE 3.5L CEL Flares on upshift

Issue + Repair History:

• Check Engine Light on with code P2714 (pressure control solenoid performance).
• Slow shift from 2nd to 3rd gear, losing speed during shift.
• Slow 3rd to 4th gear shift at light throttle; heavy throttle shifts are good.
• Replaced transmission with a used unit due to service contract, but issue persisted.
• Flushed transmission and used genuine Toyota fluid; issue still present.
• Installed another used transmission with worse performance.
• Relearn procedures and hydraulic testing done, but issue remained.
• Inspected valve body and pressure solenoids, all seemed fine.

Other OBD2 Codes + Test Results:

• P2714 – Pressure Control Solenoid “D” Performance
• Fluid: Full and clean
• Pressure: 145 psi in drive at WOT, erratic in 3rd gear
• Solenoid Ohm: 5.6 ohms

Suggestions to Fix Issue:

• Check the Output Speed Sensor (OSS), specifically its color and location.
• Consider the possibility of an OSS signal error rather than a solenoid problem.

Final Fix:

• The issue was due to the incorrect speed sensor installed in the OSS location.
• Both sensors transferred from the original transmission were black, not blue.
• Replaced with a blue sensor from one of the previously replaced transmissions, resolving the issue.

Case #3: Chevrolet

Vehicle Information: 2011 Chevrolet Cruze LS 1.8L All forward gears

Issue + Repair History:

• No forward motion; reverse works normally.
• Check engine light on with code P2714, P2723 (Pressure Control Solenoid Valve 5 stuck off).
• Very slow shift from 2nd to 3rd, losing speed during shift.
• Sometimes slow 3rd to 4th gear shift at light throttle.
• Transmission fluid was very dark; flushed but issue persisted.
• Replaced transmission with a used unit, but the problem remained.

Other OBD2 Codes + Test Results:

• P2714 – Pressure Control Solenoid D Perf/Off
• P2723 – Pressure Control Solenoid Valve 5 Stuck Off

Suggestions to Fix Issue:

• Check if the transmission fluid is burnt or has any metal debris.
• Investigate if the 1234 clutch circuit solenoid is inoperative.
• Examine switch states on the scan tool for potential valve body failure.
• Consider the possibility of a failing transmission control module or solenoid.
• Look into a leaking 1234 clutch piston as a potential cause.
• Weigh the cost of further diagnostics against replacing the unit with a used or remanufactured one.

Final Fix:

• Found Bulletin #16-NA-092: Issue was caused by a non-functioning pressure control solenoid in the control solenoid valve assembly (TEHCM).
• Replaced and programmed TCM, which resolved the issue.

Case #4: Cadillac

Vehicle Information: 2007 Cadillac Escalade 6.2L

Issue + Repair History:

• 6L80 transmission setting multiple codes: P2723, P2714, P0756.
• Randomly sets all three codes.
• No forward motion, but reverse works fine.
• Line pressure test showed 55psi at idle, 90psi in reverse.
• Actuated line pressure solenoid and got correct pressure on gauge.
• Suspected solenoid body/TCM issue.
• Transmission was overhauled; all clutches looked perfect, no debris.
• Found cracks in pump cover/stator assembly, which was replaced.
• All clutches air-checked with no problems.
• Able to program TCM but don’t have tech2.
• Inspected connector at back of transmission; all pins/terminals look good.

Other OBD2 Codes + Test Results:

• P2723 – Clutch Pressure Control Solenoid 5 Stuck Off
• P2714 – Pressure Control Solenoid 4 Stuck Off
• P0756 – Shift Solenoid 2 Performance/Stuck Off

Suggestions to Fix Issue:

• Check for internal cracks in drums that could be bleeding pressure off.
• Inspect main wiring connector for any terminals backed out or broken.
• Perform a solenoid cleaning function using a scan tool.
• Check internal wiring for damage or cracks.
• Consider possible hydraulic issues within the transmission.
• Perform a transmission adaptives reset.
• Check ignition switch for electrical issues.

Final Fix:

• Disassembled valve body and found a check ball that was half the size of other check balls, wedged in the separator plate.
• Reassembled transmission, which resolved the trouble codes.
• Performed transmission adaptive reset to fix a 2-second delay when put into drive.

Case #5: Toyota

Vehicle Information: 2008 Toyota Tundra Limited 5.7L

Issue + Repair History:

• Customer brought the vehicle for a check-up after purchasing from a used car lot.
• Recommended and performed a transmission fluid flush; the fluid was black.
• After service, the customer returned with the dash lit up and codes P2714 and P0751.
• The transmission shifts perfectly.
• Cleared the codes, but they returned a week later after the customer used 4×4.
• TSB detailing replacement transmission and ECM reflash was found.
• Importance of correct fluid level, which was checked multiple times following the proper procedure.

Other OBD2 Codes + Test Results:

• P2714 – Pressure Control Solenoid D Malfunction
• P0751 – Shift Solenoid A Performance

Suggestions to Fix Issue:

• Flush the transmission again with Toyota WS fluid.
• Ensure fluid level is correct at the appropriate transmission temperature.
• Consider the possibility of valve body blockage from flushing.
• Verify that Toyota ATF WS fluid was used and properly refilled.
• Check transmission connector for fluid leaks or corrosion.

Final Fix:

• The issue was resolved with an ECM reflash as mentioned in TSB#0170-09.
• Flashed the truck’s ECM and the problem was fixed, with no more codes appearing.

Advice	Brief Description of Diagnostic Step
Check Fluid Level	Verify the transmission fluid level is correct, especially after a fluid change.
Use Correct Fluid Type	Ensure the use of the appropriate transmission fluid, such as Toyota WS fluid.
Perform ECM Reflash	If applicable, reflash the ECM as per the technical service bulletins (TSBs).
Inspect Valve Body and Solenoids	Examine the valve body for blockages and test the solenoids for proper operation.
Check for Transmission Fluid Leaks	Inspect the transmission for any signs of fluid leakage or contamination.
Consider Mechanical Issues	Look for internal transmission problems, such as damaged clutches or drums.
Scan for Additional Codes	Use a diagnostic tool to check for any other related transmission fault codes.