• Perform the Diagnostic System Check prior to using this diagnostic procedure:Diagnostic System Check - Vehicle
• Review the description of Strategy Based Diagnosis:Strategy Based Diagnosis
• An overview of each diagnostic category can be found here:Diagnostic Procedure Instructions

The solenoid actuator controls fluid pressure by moving the clutch 4th regulator valve that controls the fluid pressure to the 4th clutch.

• Battery Voltage=Greater than 9 V
• Engine Speed=Greater than 400 RPM
• High Side Driver 2=On

Frequency the DTC runs=Continuously—After the running conditions are met—For greater than 1 s

Clutch 4=Not applied

Clutch 4=Not released

DTCs listed in the DTC Descriptor category=Type A

• Autostart/Autostop=Disabled
• Grade braking=Disabled
• Manual Shift Control=Disabled
• Neutral Idle Mode=Disabled
• Powertrain braking=Disabled
• TCC Control=Disabled
• Transmission Adaptive Values Learn=Freeze current adapt values
• { P2714 }Transmission gear allowed=ReverseorGear 7
• { P2715 }Transmission gear allowed=ReverseorGear 5

DTCs listed in the DTC Descriptor category=Type A

• High resistance in the circuits of the component Q77D may set DTC P2715 without setting control circuit DTC(s).
• A speed sensor reporting an incorrect direction could cause a clutch stuck Off DTC before setting a speed sensor DTC.
• {If Equipped with ETRS}If DTC P0747, P0797, P187E, P18AA, P18AB, P18AC, P18AD, P18AE, P18E7, P18E8, P2714, P2715, P2718, P2720, P2721, P27EB, P27EC, P27ED, P27EE, P27EF, P27F0, P27F1, P27F2, or P2814 is setTransmission Fluid Pressure=172 kPa (25 PSI)—DefaultPark (P) range

• Park - Engine Running
• Reverse
• Neutral - Engine Running
• Drive Range, First Gear
• Drive Range, Second Gear
• Drive Range, Third Gear
• Drive Range, Fourth Gear
• Drive Range, Fifth Gear
• Drive Range, Sixth Gear
• Drive Range, Seventh Gear
• Drive Range, Eighth Gear
• Drive Range, Ninth Gear

Automatic Transmission Controls Schematics

Master Electrical Component List

• Circuit Testing
• Connector Repairs
• Testing for Intermittent Conditions and Poor Connections
• Wiring Repairs

Powertrain Diagnostic Trouble Code (DTC) Type Definitions

Control Module References

1. Verify the condition does not exist:Incorrect fluid level or condition»Refer to:Transmission Fluid Level and Condition Check
• If a condition exists

  Repair or replace as necessary

• If no condition exists
2. Ignition » On / Vehicle » In Service Mode
3. Verify DTC P0716, P0717, P0721, P0722, P0723, P07BF, P077C, P077D, P07C0, P176B, P176C, P176D, P17D3, P2714, P2715 is not set
• If DTC P0716, P0717, P0721, P0722, P0723, P07BF, P077C, P077D, P07C0, P176B, P176C, P176D, P17D3 is set

  Refer to:Diagnostic Trouble Code (DTC) List - Vehicle

• If DTC P2715 is set

  Refer to step 5

• If DTC P2714 is set

Note:

• For this test, the following scan tool parameter temperature needs to be between 20 and 80°C (68 and 176°F):Transmission Fluid Temperature
• The scan tool control function may turn off after 30 s.

4. Perform the scan tool control function:Transmission Control Solenoid Valve 4»On—For greater than 2 s

Verify the difference between the following parameters is less than 0.05 A:

• Transmission Control Solenoid Valve 4 Current
• Transmission Control Solenoid Valve 4 Current Command
• If the difference is 0.25 A or greater

  Repair or replace the following as necessary:

• Circuit High Resistance
• High Resistance@Q77 Transmission Control Solenoid Valve»Refer to:Transmission Solenoid Information
• If the difference is between 0.05 and 0.25 A

  Perform the following steps:

Note:

• Determining the difference between the current parameters of the components will determine if a high resistance condition is present.
• This step compares the original component that set the DTC with a known good component (referred to as X) on this vehicle (same type) that does not have a DTC set.

1. Perform the scan tool control function:Transmission Control Solenoid Valve 4»On—For greater than 2 s

Monitor and record the difference between the following scan tool parameters:Transmission Control Solenoid Valve 4 Current Command&Transmission Control Solenoid Valve 4 Current

2. Perform the scan tool control function:Transmission Control Solenoid Valve X»On—For greater than 2 s@A known good component on this vehicle (same type)»Refer to:Transmission Solenoid Information

   Monitor and record the difference between the following scan tool parameters:Transmission Control Solenoid Valve X Current Command&Transmission Control Solenoid Valve X Current

3. Verify the difference between the two recorded values is 0.05 A or less—The original component that set the DTC&A known good component on this vehicle (same type)
• If the difference between the recorded values is greater than 0.05 A»Repair or replace the following as necessary:
• Circuit High Resistance
• High Resistance@Q77 Transmission Control Solenoid Valve»Refer to:Transmission Solenoid Information
• If the difference between the recorded values is 0.05 A or less
4. Refer to step 5
• If the difference is less than 0.05 A
5. Perform the following action:Clear the DTCs.
6. 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.Refer to:Road Test

   Verify that no DTC listed in the DTC Descriptor Category is set.

• If any of the DTCs are set

  Refer to:Diagnostic Fault Information&Verify the conditions listed in the table do not exist

• If none of the DTCs are set
7. All OK.

Perform the Diagnostic Repair Verification after completing the repair:Diagnostic Repair Verification

• 2-9 and 4 Clutch Piston Housing Disassemble
• Clutch Plate Diagnosis
• Control Valve Body Cleaning and Inspection
• Control Valve Solenoid Body Cleaning and Inspection
• Control Valve Solenoid Body Replacement
• For control module replacement, programming, and setup refer to:Control Module References

Transmission Service Fast Learn Procedure—Perform only when the component/system is serviced.