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Home >> Chevrolet >> 2019 >> Cruze Premier, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Automatic Transmission - 9T50 (M3D) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P188B >> Circuit/System Verification

Circuit/System Verification

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  1. Ignition - On/Vehicle - In Service Mode
  2. Verify there are no DTCs set related to the following system/component: Serial Data
    • If no other DTCs are set 
    1. Ignition/Vehicle - Off
    2. Replace the component:
    3. Operate the vehicle within the Conditions for Running the DTC K20 Engine Control Module

      Verify the DTC does not set.

      • If the DTC sets - Replace the component: K71 Transmission Control Module
      • Go to next step: If the DTC is not set
    4. All OK.
    • Go to next step: If no DTC is set 
  3. All OK.
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