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Home >> Chevrolet >> 2018 >> Spark LT, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission - JATCO CVT) >> Diagnostic Information and Procedures >> DTC P2796, P2797, or P2799 >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition - On/Vehicle - In Service Mode & Engine - Off Transmission in Park
  2. Verify that all of the following scan tool parameters: = OK or Not Run
    • Auxiliary Transmission Fluid Pump Relay Control Circuit High Voltage Test Status
    • Auxiliary Transmission Fluid Pump Relay Control Circuit Low Voltage Test Status
    • Auxiliary Transmission Fluid Pump Relay Control Circuit Open Test Status
    • If any of the parameters do NOT display OK 

      Refer to: Circuit/System Testing

    • Go to next step: If all of the parameters display OK 
  3. Perform the scan tool control function: Auxiliary Transmission Fluid Pump Command - On and Off

    Verify the component turns On and Off: G5 Transmission Fluid Pump - Electric/Auxiliary

    • If the component does not turn On and Off 
    • Refer to: Circuit/System Testing
    • Go to next step: If the component turns On and Off 
  4. Perform the scan tool control function: Auxiliary Transmission Fluid Pump Relay Command - On and Off

    Verify a click can be heard or felt at the component when the scan tool control function was commanded:

    • If a click cannot be heard or felt 

      Refer to: Circuit/System Testing

    • Go to next step: If a click can be heard or felt 
  5. Verify DTC P2796, P2797, P2799 is only set as a history DTC.
    • If any of the DTCs are set as current 

      Refer to: Circuit/System Testing

  6. Clear DTCs
  7. 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.
    • If any of the DTCs are set 

      Refer to: Circuit/System Testing

    • Go to next step: If none of the DTCs are set 
  8. All OK.