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Home >> GMC >> 2020 >> Acadia AT4 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T50 (M3H), 9T60 (M3G) Or 9T65 (M3W M3V) - Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC P0960, P0962-P0964, P0966-P0968, P0970, P0971, P2670, P2671, P2718, P2720, P2721, P2812, P2814, P2815, P281B, P281D, or P281E >> Component Testing

Component Testing

  1. Test the resistance between the test points : Terminal 1@Q77 Transmission Control Solenoid Valve & Terminal 2@Q77 Transmission Control Solenoid Valve

    Verify the value is within the range listed in the table : Transmission Solenoid Information

    • If not in the specified range 

      Replace the component : Q77 Transmission Control Solenoid Valve

    • Go to next step : If in the specified range 
  2. Test for infinite resistance between the test points : Terminal 1@Q77 Transmission Control Solenoid Valve & Ground
    • If less than infinite resistance 

      Replace the component : Q77 Transmission Control Solenoid Valve

    • Go to next step : If infinite resistance 
  3. All OK.
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