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Home >> Chevrolet >> 2011 >> Corvette ZR-1 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Automatic Transmission - 6L80-E - DTC P0562 Through DTC P0990) >> DTC P0815, P0816, P0826, or P1876 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Engine running, park brake applied, drive wheels chocked. Shift the transmission into the manual (M) position. Verify with a scan tool the following TCM parameters display the correct values:
    • Drivers Shift Control - Inactive
    • Drivers Shift Request - Inactive
  2. Verify with a scan tool the following TCM parameters display the correct values when pressing the plus button. Perform this test on both plus switches:
    • Drivers Shift Control - Active
    • Drivers Shift Request - Upshift
  3. Verify with a scan tool the following TCM parameters display the correct values when pressing the minus button. Perform this test on both minus switches:
    • Drivers Shift Control - Active
    • Drivers Shift Request - Downshift
  4. 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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