P2715
DTC P2714 or P2715 (Gen 2)
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 Instructions provides an overview of each diagnostic category.
DTC Descriptors
DTC P2714
- Pressure Control Solenoid Valve 4 Stuck Off
DTC P2715
- Pressure Control Solenoid Valve 4 Stuck On
Circuit/System Description
Pressure control solenoid 4 is part of the control solenoid valve assembly which has no serviceable components. Pressure control solenoid 4 regulates transmission fluid pressure to the 2-6 regulator valve which controls pressure to the 2-6 clutch. The transmission control module (TCM) calculates gear ratio based on the speed signals from the input shaft speed (ISS) sensor and the output shaft speed (OSS) sensor. The TCM compares the expected transmission gear ratio to the calculated gear ratio for each commanded gear.
Conditions for Running the DTC
P2714
* DTC P0101, P0102, P0103, P0106, P0107, P0108, P0171, P0172, P0174, P0175, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0401, P042E, P0716, P0717, P0722, P0723, or P182E is not set.
* High side driver is enabled.
* Throttle position signal is valid.
* Ignition voltage is 9-32 V.
* Transmission fluid temperature is -6.6°C (20°F) or greater.
* Engine speed is 400-7,500 RPM for 5 s.
* Pressure control solenoid 4 is commanded ON, applying the 2-6 clutch.
* Output speed is 100 RPM or greater, or the throttle position is greater than 0.5%.
* Runs continuously when above conditions are met.
P2715
* DTC P0101, P0102, P0103, P0106, P0107, P0108, P0171, P0172, P0174, P0175, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0401, P042E, P0716, P0717, P0722, P0723, or P182E is not set.
* Ignition voltage is 9-32 V.
* Transmission output shaft speed is 100 RPM or greater, or throttle position is 0.5% or greater.
* Pressure control solenoid 4 is commanded OFF, releasing the 2-6 clutch.
* TFT is -6.6°C (20°F) or greater.
* Engine speed is 400-7,500 RPM for 5 s.
* Engine torque is 45 Nm (33 lb ft).
* The attained range is not 1st gear.
* High side driver is enabled.
* Runs continuously when above conditions are met.
Conditions for Setting the DTC
P2714
TCM detects an incorrect on-coming clutch gear ratio, or shift flare. This condition must occur 3 times.
P2715
TCM detects an incorrect off-going clutch gear ratio, or shift tie-up. This condition must occur 3 times.
Action Taken When the DTC Sets
P2714
* P2714 is a Type A DTC.
* TCM commands maximum line pressure.
* TCM freezes transmission adaptive functions.
* TCM inhibits the Tap Up/Tap Down function.
* TCM inhibits manual shifting of forward gears.
* TCM limits the transmission to reverse and 3rd gear.
* TCM inhibits powertrain braking.
* TCM inhibits neutral idle.
* TCM inhibits auto grade braking.
P2715
* P2715 is a Type A DTC.
* TCM commands maximum line pressure.
* TCM freezes transmission adaptive functions.
* TCM inhibits the Tap Up/Tap Down function.
* TCM inhibits manual shifting of forward gears.
* TCM inhibits powertrain braking.
* TCM inhibits auto grade braking.
* TCM inhibits neutral idle.
* TCM commands 2nd gear if the output speed is less than 700 RPM.
* TCM commands neutral if the output speed is 700 RPM or greater.
Conditions for Clearing the DTC
P2714 and P2715 are Type A DTCs.
Reference Information
Schematic Reference
Automatic Transmission Controls Schematics Electrical Diagrams
Connector End View Reference
* Component Connector End Views Outside Rearview Mirror - Driver
* Inline Harness Connector End Views X100
Description and Operation
* Transmission General Description Transmission General Description
* Transmission Component and System Description Transmission Component and System Description
* Electronic Component Description Electronic Component Description
* Drive Range, Second Gear (Gen 2/Hybrid) Drive Range, Second Gear (Gen 2/Hybrid)
* Drive Range, Sixth Gear (Gen 2/Hybrid) Drive Range, Sixth Gear (Gen 2/Hybrid)
Electrical Information Reference
* Circuit Testing Circuit Testing
* Connector Repairs Connector Repairs
* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections
* Wiring Repairs Wiring Repairs
DTC Type Reference
Powertrain Diagnostic Trouble Code (DTC) Type Definitions Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Scan Tool Reference
Control Module References Control Module References for scan tool information
Special Tools
DT-48616 - Solenoid Assembly Test Kit & Adapter Harness
For equivalent regional tools, refer to Special Tools Tools and Equipment.
Circuit/System Verification
Warning: Refer to Parking Brake and Drive Wheels Warning Parking Brake and Drive Wheels Warning.
Note: If other DTCs are set, diagnose those DTCs first.
1. Ignition ON.
2. Verify DTC P0716, P0717, P0722, P0723, P077C, P077D, P07BF, or P07C0 was not set by reviewing the scan tool Freeze Frame/Failure Records data.
• If any of the DTCs were set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle Diagnostic Trouble Code (DTC) List - Vehicle.
• If none of the DTCs were set
3. Engine idling, transmission in Park, with parking brake applied and drive wheels chocked.
4. Verify the transmission fluid level and condition is correct. Refer to Transmission Fluid Level and Condition Check Testing and Inspection.
• If the transmission fluid level and condition is not correct
Repair as necessary.
• If the transmission fluid level and condition is correct
5. Ignition ON, clear the TCM DTCs with a scan tool.
6. Verify DTC P2714 or P2715 does not set while performing a road test. Refer to Road Test Initial Inspection and Diagnostic Overview.
• If DTC P2714 or P2715 sets
Refer to Circuit/System Testing.
• If DTC P2714 or P2715 does not set
7. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
8. Verify the DTC does not set.
• If the DTC sets
Refer to Circuit/System Testing.
• If the DTC does not set
9. All OK.
Circuit/System Testing
Note: You must perform the Circuit/System Verification first.
1. Engine idling at the normal operating temperature.
2. Verify the transmission line pressures are within the specified range. Refer to Line Pressure Check Line Pressure Check and Solenoid Valve Pressure (Gen 1) Solenoid Valve Pressure (Gen 1)Solenoid Valve Pressure (Gen 2) Solenoid Valve Pressure (Gen 2).
• If the pressures are not within range
Refer to Fluid Pressure High or Low Fluid Pressure High or Low.
• If the pressures are within range
3. Ignition OFF, remove the Q8 Control Solenoid Valve Assembly.
4. Verify the pressure changes for all solenoids when performing the solenoid test. Refer Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test.
• If the pressure does not change
Replace the Q8 Control Solenoid Valve Assembly.
• If the pressure changes
5. Verify the conditions listed below do not exist. Repair or replace as necessary.
P2714 Channel Plate and Spacer Plate
Oil channels or orifices blocked by debris.
P2714 or P2715 Control Valve Body Assembly
2-6 clutch regulator valve stuck/sticking, debris, binding, damaged valve, or scored bore.
P2714 Automatic Transmission Fluid Filter Assembly
Oil filter or filter seal loose or damaged.
P2714 Torque Converter (w/fluid pump) Housing Assembly
Fluid pump housing/gear damaged/scored.
P2714 Trans case and 1-2-3-4 clutch backing plate retainer ring
1-2-3-4 clutch backing plate retaining ring not seated/oriented correctly at trans case groove.
P2714 or P2715 Transmission case, 2-6 clutch piston, spring retaining ring, reaction sun gear
* 2-6 clutch return spring retaining ring not seated in groove
* 2-6 clutch piston assembly - seal damaged or leaking
* 2-6 clutch plates worn or damaged
* 2-6 clutch plates will not slide over the reaction sun gear shell freely
P2714 or P2715 Q8 Control Solenoid Valve Assembly
* Pressure Control Solenoid Valve 4 Stuck ON/OFF.
* Control signal fluid supply leak - valve body filter plate assembly cracked or damaged gasket seal.
* O-ring seals leaking.
Repair Instructions
Perform the Diagnostic Repair Verification Verification Tests after completing the repair.
* Perform the Transmission Adaptive Values Learn Transmission Adaptive Values Learn following all transmission repairs.
* Control Module References Control Module References for Control Solenoid Valve Assembly replacement, programming and setup.