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Home >> Buick >> 2019 >> Regal TourX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 139 (Engine Controls And Fuel - 3.6L (LGX) - Diagnostic Information And Procedures (P0449-P3436) And Symptoms) >> Diagnostic Information and Procedures >> DTC P2618 or P2619 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Engine - Running
  2. Verify there are no DTCs/symptoms related to the following system/component, if equipped:
    • K71 Transmission Control Module
    • K103 Fuel Injector Control Module
    • T3 Audio Amplifier
    • T6 Power Inverter Module
    • If a DTC or symptom exists 

      Refer to:

    • Go to next step: If no DTC or symptom exists 
  3. All OK.
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