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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 P0601, P0602, P0603, P0604, P0606, P062B, P062F, P0630, P16F3 Or P262B: Engine Control Module (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, clear the DTC information with a scan tool.
  2. Verify no other DTCs are set.
    • Go to next step: If no other DTCs are set 
  3. Verify DTC P0602 or P0630 is not set.
    • If any of the DTCs are set 
    1. Program the K20 Engine Control Module. Refer to Control Module References .
    2. Verify DTC P0602 or P0630 is not set.
      • If any of the DTCs are set, replace the K20 Engine Control Module.
      • If none of the DTCs are set
    3. All OK.
    • Go to next step: If none of the DTCs are set 
  4. Verify DTC P0601, P0603, P0604, P0606, P062F, P16F3 or P262B is not set.
    • If any of the DTCs are set 

      Replace the K20 Engine Control Module.

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