Control Solenoid Valve and Transmission Control Module Assembly Inspection

2020 GMC Acadia SLE, 2.5L Eng VIN ASECTION Control Solenoid Valve and Transmission Control Module Assembly Inspection
WARNING: This page is about a different car, the 2019 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Control Solenoid Valve And Transmission Control Module Assembly Components
GM1880311Courtesy of GENERAL MOTORS COMPANY
  1. Verify the conditions listed below do not exist. Carefully inspect the control solenoid valve assembly connectors and pins (1, 2, 4, 6) for the condition. Repair or replace as necessary.
    • Damage
    • Bent pins
    • Debris
    • Broken retaining tab
    • Contamination
  2. Verify there is no metallic debris inside the connectors near the terminal pins. Clean as necessary.
  3. Verify the control solenoid valve assembly solenoid leads (3) do not have contamination or metallic debris. Clean as necessary.
  4. Verify the resistance between the leads of each solenoid valve is within the range in the table below, with the solenoid valves at room temperature. If the resistance of any solenoid valve is not within range, replace the Control Valve Body Assembly.
  5. Inspect the 2 control solenoid valve assembly filter plate retaining tabs (5) for cracks and ensure proper tension when filter plate is attached.
NOTE:

The connector on the TCC pressure control solenoid valve (8) will be either clear/transparent or yellow. The clear/transparent connector will have a color contrast when compared to the connectors on pressure control solenoid valve 2 (11) and pressure control solenoid valve 4 (12).

Solenoid Resistance

Solenoid Name Illustration Number Expected Resistance Ξ©
Pressure Control Solenoid Valve 3 7 4.55 - 5.75
Pressure Control Solenoid Valve 5 8 4.55 - 5.75
TCC Pressure Control Solenoid Valve 9 3.42 - 4.18 Clear/transparent Connector
4.55 - 5.75 Yellow Connector
Shift Solenoid Valve 1 10 16.2 - 19.8
Pressure Control Solenoid Valve 2 11 4.55 - 5.75
Pressure Control Solenoid Valve 4 12 4.55 - 5.75
Line Pressure Control Solenoid Valve 13 4.55 - 5.75
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

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