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Home >> Chevrolet >> 2019 >> Cruze Premier, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P057B-P208D)) >> Diagnostic Information and Procedures >> DTC P208A-P208D (68 Body - Hatchback) >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different variant/trim than selected.
  1. Ignition Off, and all vehicle systems Off. It may take up to 2 min for all vehicle systems to power down.
  2. Disconnect the electrical connector: X1 @ A39 Reductant Tank
  3. Test for less than 10 Ω between the low reference circuit terminal 5 and ground.
    • If 10 Ω or greater 
    1. Ignition Off.
    2. Test for less than 2 ohms between the test points: Low Reference circuit terminal 5 X1 @ Component harness & Terminal 13 @ Control module harness
      • If 2 Ω or greater, repair the open/high resistance in the circuit.
      • If less than 2 Ω, replace the K115 Reductant Control Module.
    • Go to next step: If less than 10 Ω 
  4. Disconnect the electrical connector: X2 @ K115 Reductant Control Module
  5. Test for less than 2 Ω between the control circuit terminals listed below:
    • Terminal 6 X1 @ A39 Reductant Tank & Terminal 2 X2 @ K115 Reductant Control Module
    • Terminal 7 X1 @ A39 Reductant Tank & Terminal 4 X2 @ K115 Reductant Control Module
    • Terminal 8 X1 @ A39 Reductant Tank & Terminal 3 X2 @ K115 Reductant Control Module
    • If greater than 2 Ω 

      Repair the open/high resistance in the appropriate circuit.

    • Go to next step: If less than 2 Ω 
  6. Ignition Off, test for infinite resistance between each control circuits listed above and ground.
    • If less than infinite resistance 

      Repair the short to ground at the appropriate circuit.

    • Go to next step: If infinite resistance 
  7. Ignition ON, test for less than 1 V between each control circuits listed above and ground.
    • If 1 V or greater 

      Repair the short to voltage on the appropriate circuit.

    • Go to next step: If less than 1 V 
  8. Replace the component: A39 Reductant Tank
  9. 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.
  10. Verify the DTC does not set.
    • If the DTC sets 

      Replace the component: K115 Reductant Control Module

    • Go to next step: If the DTC does not set 
  11. All OK.
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