• 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

For an overview of the component/system, refer to:

• Drive Range, First Gear
• Drive Range, Second Gear
• Drive Range, Third Gear
• Drive Range, Fourth Gear
• Drive Range, Fifth Gear
• Drive Range, Sixth Gear
• Reverse
• Electronic Component Description
• Fluid Passages

The solenoid valve is used to regulate fluid pressure to other transmission control valves for torque converter clutch operation.

• DTC P0101–P0103, P0106–P0108, P0171, P0172, P0174, P0175, P0201–P0208, P0300–P0308, P0401, P042E, P0716, P0717, P0722, P0723, P0742, P2763, P2764 = Not set
• Accelerator Pedal Position=Greater than 8%
• Accelerator pedal position signal = Valid
• Engine Speed=400 to 7,500 RPM—For greater than 5 s
• Engine Torque=Greater than 50 Nm (37 lb ft)
• Engine Torque Signal=Valid
• Gear Ratio=Between:
• 2nd Gear Ratio=2.75 to 3.17
• 3rd Gear Ratio=1.78 to 2.04
• 4th Gear Ratio=1.35 to 1.55
• 5th Gear Ratio=0.93 to 1.07
• 6th Gear Ratio=0.70 to 0.80
• Ignition Voltage=9 to 32 V
• Torque Converter Clutch Pressure Command=Greater than 500 kPa (73 PSI)—For greater than 2 s
• Transmission Fluid Temperature=−7 to 130°C (20 to 266°F)
• Power Take-Off=Off

Frequency the DTC runs=Continuously—After the running conditions are met

• DTC P0101–P0103, P0106–P0108, P0171, P0172, P0174, P0175, P0201–P0208, P0300–P0308, P0401, P042E, P0716, P0717, P0722, P0723, P0741, P2763, P2764 = Not set
• Accelerator Pedal Position=10 to 75%
• Engine Speed=400 to 7,500 RPM—For greater than 5 s
• Engine Torque=Greater than 35 Nm (26 lb ft)
• Ignition Voltage=9 to 32 V
• Torque Converter Clutch=Off
• Transmission=Forward Gear
• Transmission Fluid Temperature=−7 to 130°C (20 to 266°F)
• Vehicle Speed=Greater than 1 km/h (0.6 MPH)

Frequency the DTC runs=Continuously—After the running conditions are met

TCC Slip Speed=Greater than 130 RPM—For greater than 5 s

The above condition(s) must occur 2 times.

TCC Slip Speed=−60 to 30 RPM—For greater than 1 s

The above condition(s) must occur 5 times.

DTC P0741=Type B DTC—Additional actions taken:

• TCC Control=Disabled
• Transmission—6th gear=Disabled
• Transmission Shift Mode=Transmission Hot Mode

DTC P0742=Type A DTC—Additional actions taken:

• TCC Control=Applied
• Transmission Adaptive Pressure Control=Freeze current adapt values
• Neutral Idle Mode=Disabled
• Transmission Shift Mode=Transmission Hot Mode

• DTC P0741=Type B DTC
• DTC P0742=Type A DTC

• DTC P0741 will set with a hydraulic/mechanical condition or high resistance in the circuit of the component Q39A without setting component/control circuit DTCs.
• DTC P0742 will set with a hydraulic/mechanical condition.

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. Clear the DTCs.
4. Road test the vehicle.»Refer to:Road Test

   Verify DTC P0716, P0717, P0722, P0723 is not set

• If any of the DTCs are set

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

• If none of the DTCs are set
5. Verify that no DTC listed in the DTC Descriptor Category is set.
• If any DTC listed in the DTC Descriptor Category is set

  Refer to: Circuit/System Testing

• If none of the DTCs listed in the DTC Descriptor Category is set
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.

   Verify the DTC does not set.

• If the DTC sets

  Refer to: Circuit/System Testing

• If the DTC is not set
7. All OK.

1. Verify the condition does not exist:Incorrect pressure»Refer to:Line Pressure Check&Solenoid Valve Pressure
• If a condition exists

  Refer to:Fluid Pressure High or Low

• If no condition exists
2. Ignition/Vehicle » Off
3. Remove the component:Q8 Control Solenoid Valve Assembly
4. Verify the procedure/test passes.»Refer to:Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test
• If the procedure/test does not pass

  Replace the component:Q8 Control Solenoid Valve Assembly

• If the procedure/test passes
5. Refer to:Diagnostic Fault Information

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

• Control Solenoid Valve and Transmission Control Module Assembly Replacement—Q8 Control Solenoid Valve Assembly
• Control Valve Body Assembly Removal
• Control Valve Channel Plate Cleaning and Inspection
• Torque Converter Housing with Fluid Pump Assembly Removal
• Torque Converter Installation
• Torque Converter Removal
• For control module replacement, programming, and setup refer to:Control Module References

Transmission Adaptive Values Learn—Perform only when the component/system is serviced.