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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 P1824, P182A-P182F, P1838-P1841, P18B5-P18BF, or P18C0-P18C3 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Verify the correct adjustment: Range Selector Lever Cable - Refer to: Automatic Transmission Range Selector Lever Cable Adjustment
    • If not adjusted correctly 

      Adjust the shift lever and selector lever cable.

    • Go to next step: If adjusted correctly 
  2. Ignition - On/Vehicle - In Service Mode
  3. Verify the scan tool parameter:
    • 9V Reference 1 Circuit Status = OK or Not Run
    • 9V Reference 2 Circuit Status = OK or Not Run
    • If not the specified state 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified state 
  4. Operate the component: Shift Lever - Select each position
  5. Verify the scan tool parameter: Internal Mode Switch A/B/C/P/S

    Refer to: Transmission Internal Mode Switch Voltage - The value should be within the range listed in the table:

    • If not the specified values 

      Refer to: Circuit/System Testing

    • Go to next step: If the specified values 
  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.
  7. Verify the DTC does not set.
    • If the DTC sets 

      Refer to: Circuit/System Testing

    • Go to next step: If the DTC is not set 
  8. All OK.