SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCADILLAC2011CTS BASE, 4D WAGON, 3.6 D, AWDREPAIR AND DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION - 6L45/6L50/6L90 - DTC P0150C THROUGH DTC P2764DTC P2714 OR P2715CIRCUIT/SYSTEM TESTING
2011 Cadillac CTS Base, 4D Wagon, 3.6 D, AWD

Circuit/System Testing

2011 Cadillac CTS Base, 4D Wagon, 3.6 D, AWDSECTION Circuit/System Testing
  1. Perform the Line Pressure Check . Verify the transmission line pressures are within the specified ranges.
  2. Ignition OFF, remove the Q8 control solenoid valve assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement .
  3. Perform the Control Solenoid Valve and Transmission Control Module Assembly Solenoid Performance Test . Test all solenoids on the Q8 control solenoid valve assembly. A pressure change should occur for each solenoid valve.
    • If the Q8 control solenoid valve assembly does not pass the performance test, replace the Q8 control solenoid valve assembly.
  4. Listed in the chart below, are conditions for each component that could set DTC P2714 or P2715. Carefully inspect each component for that condition. Repair or replace as necessary.
DTC Component Condition
P2714
P2715		 Control Valve Upper Body Assembly (304) 2-6 clutch regulator valve (334) stuck / sticky - debris, binding, damaged valve, or scored bore
P2714 Q8 Control Solenoid Valve Assembly (314) Refer to document PIP 4304A. DTC P2714 may be set with DTC P0878
P2714
P2715		 Q8 Control Solenoid Valve Assembly (314)
  • Control signal fluid supply leak - valve body filter plate assembly cracked or damaged gasket seal
  • O-ring seals leaking
P2714
P2715		 Center (w/2-6 and Low/Rev Clutch) Support Assembly (67)
  • 2-6 clutch return spring retaining ring (455) not seated in groove
  • 2-6 clutch piston assembly - seal damaged or leaking
  • 2-6 clutch plates (451-453) worn or damaged
  • Center support transfer seal assembly (20) incorrectly installed
P2714 1-2-3-4 and 3-5-R Clutch Housing Assembly (51)
  • 1-2-3-4 clutch backing plate retaining ring (429) not seated / oriented correctly
  • 1-2-3-4 clutch piston (414) - seals damaged or leaking
  • 1-2-3-4 clutch piston (414) - cracked or damaged
P2714 4-5-6 (w/turbine shaft) Clutch Assembly (56)
  • Turbine shaft fluid seal rings (442) damaged or leaking
  • 4-5-6 clutch piston assembly (439) - seals damaged or leaking
P2714 A/Trans Fluid Pump Cover Assembly (219) Pump tower seals (230) damaged or leaking
P2714 Torque Converter (w/fluid pump) Housing Assembly (2) Fluid pump housing / vanes / rotor / slide damaged / scored
P2714 A/Trans Fluid Filter Assembly (26) Oil filter (26) or filter seal (25) loose or damaged
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.