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Home >> Chevrolet >> 2023 >> Camaro ZL1, 2D Convertible, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 25 (Automatic Transmission - 8L45 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0746 or P0747 >> Circuit/System Verification

Circuit/System Verification

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  1. Verify the condition does not exist: Incorrect fluid level or condition - Refer to: Transmission Fluid Level and Condition Check 
    • If a condition exists 

      Repair or replace as necessary

    • Go to next step: If no condition exists 
  2. Ignition - On/Vehicle - In Service Mode
  3. Clear DTCs
  4. Road test the vehicle. - Refer to: Road Test 
  5. Verify that no DTC listed in the DTC Descriptor Category is set.
    • If any DTC listed in the DTC Descriptor Category is set 

      Refer to: Diagnostic Fault Information

    • Go to next step: If none of the DTCs listed in the DTC Descriptor Category is set 
  6. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.

    Verify that no DTC listed in the DTC Descriptor Category is set.

    • Go to next step: If no DTC is set 
  7. All OK.