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Home >> Cadillac >> 2015 >> XTS Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6T70 (M7U M7W), 6T75 (M7V), Or 6T80 (Mhm) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P2719-P2721: Pressure Control Solenoid Valve 4 >> Circuit/System Verification

Circuit/System Verification

  1. Operate the vehicle in second gear long enough to ensure at least a 3°C (5°F) rise in TCM temperature, then operate the vehicle in Park for 5 s.
  2. Operate the vehicle in Drive range. Allow the transmission to shift through all forward gear ranges.
  3. Verify the scan tool parameters listed below do not display Malfunction:
    • Pressure Control Solenoid Valve 4 Performance Test Status
    • Pressure Control Solenoid Valve 4 Control Circuit Low Voltage Test Status
    • Pressure Control Solenoid Valve 4 Control Circuit High Voltage Test Status
    • If Malfunction is displayed 

      Refer to Circuit/System Testing.

    • If Malfunction is displayed 
  4. 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.
  5. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing

    • If the DTC does not set 
  6. All OK.
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