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Home >> Chevrolet >> 2021 >> Equinox LS, 4WD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6T40 (MNH MNK) Or 6T45 (MHG) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P2762, P2763, or P2764 >> Component Testing

Component Testing

  1. Ignition/Vehicle - Off
  2. Remove the component: Q8 Control Solenoid Valve Assembly

    Verify the following conditions do not exist: Contamination with metallic debris

    • If a condition exists 

      Repair or replace as necessary

    • Go to next step: If no condition exists 
  3. Verify the resistance is within the specified range for each solenoid valve. Refer to: Control Solenoid Valve and Transmission Control Module Assembly Inspection 
    • If the resistance is not within range 

      Replace the component: Q8 Control Solenoid Valve Assembly

    • Go to next step: If the resistance is within range 
  4. Install - DT-48616-10 Adapter Harness @ Q8 Control Solenoid Valve Assembly & Vehicle wiring harness X1
  5. Connect the electrical connector: B15 Transmission Internal Mode Switch
  6. Ignition - On / Vehicle - In Service Mode
  7. Perform the scan tool control function: TCC Pressure Control Solenoid Valve - On and Off

    Verify the scan tool parameter:

    • TCC Pressure Control Solenoid Valve Control Circuit High Voltage Test Status = OK or Not Run
    • TCC Pressure Control Solenoid Valve Control Circuit Low Voltage Test Status = OK or Not Run
    • TCC Pressure Control Solenoid Valve Control Circuit Status = OK or Not Run
    • If not the specified state 

      Replace the component: Q8 Control Solenoid Valve Assembly

    • Go to next step: If the specified state 
  8. All OK.