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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 362 (Automatic Transmission - 6L80/6L90 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0961-P0963 >> Circuit/System Verification

Circuit/System Verification

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  1. Engine running in Park position. Move the gear shifter lever into each gear position and back into Park position. Verify with a scan tool the following test status parameters display OK:
    • Line Pressure Control Solenoid Performance Test Status
    • Line Pressure Control Solenoid Control Circuit High Voltage Test Status
    • Line Pressure Control Solenoid Control Circuit Low Voltage Test Status
  2. Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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