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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Engine Controls And Fuel - 6.0L (L96) - DTC P0351 To DTC P2636 And Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> DTC P0641, P0651, P0697 Or P06A3: 5V Reference (1-4) Circuit(s) (ECM) >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON.
  2. Verify all scan tool 5V Reference 1 - 4 Circuit Status parameters do not display Malfunction.
    • If Malfunction is displayed 

      Refer to Circuit/System Testing below.

    • Go to next step: If Malfunction is not displayed 
  3. 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.
  4. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing below.

    • Go to next step: If the DTC does not set 
  5. All OK.
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