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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Engine Controls And Fuel - 1.0L (L4B L4F L4G LIJ) Or 1.2L (L4H L4K LIF LIH) - Diagnostic Information And Procedures (1 Of 2)) >> Diagnostic Information and Procedures >> DTC P0201-P0203, P0261, P0262, P0264, P0265, P0267, P0268, P1248, P1249, P124A, P2147, P2148, P2150, P2151, P2153, or P2154 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition - On/Vehicle - In Service Mode
  2. Verify the scan tool parameter:
    • Cylinder 1 Injector Control Circuit Status = OK
    • Cylinder 2 Injector Control Circuit Status = OK
    • Cylinder 3 Injector Control Circuit Status = OK
    • If not the specified state 

      Refer to Circuit/System Testing

    • Go to next step: If the specified state 
  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

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