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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 1.0L (L4B L4F L4G LIJ) Or 1.2L (L4H L4K LIF LIH) - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC P050D >> Circuit/System Verification

Circuit/System Verification

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NOTE:

Cold Start-Up = Required

  1. Engine - Idling
  2. Verify the scan tool parameter: Cylinder 1 - 3 Current Misfire Counter = Less than 1
    • If 1 or greater 
    1. Ignition - On/Vehicle - In Service Mode & Engine - Off
    2. Verify the following conditions do not exist:
      • If a condition exists - Repair or replace as necessary
      • If no condition exists - Replace the component: Q17 Fuel Injector
    • Go to next step: If less than 1 
  3. All OK.