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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 >> Fuel Injector Diagnosis >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
    NOTE:

    Do NOT perform this procedure unless directed here from the following diagnostic/test:

  1. Ignition - On/Vehicle - In Service Mode
  2. Verify there are no DTCs set related to the following component/system:
    • Q17 Fuel Injector
    • Fuel System
    • Go to next step: If a related DTC is not set 
  3. Perform one of the following procedures/tests:
    • {CH-47976 Active Fuel Injector Tester} Fuel Injector Balance Test - Preferred Method
    • {Scan Tool} Fuel Injector Balance Test
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