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Home >> Chevrolet >> 2018 >> Equinox L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls And Fuel - 1.6L (LH7) Diesel - Diagnostic Information And Procedures (P0016 - P049D)) >> Diagnostic Information And Procedures >> DTC P037A, P037B, Or P0381: Wait To Start Indicator Control Circuit >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
  1. Ignition ON.
  2. Command the Wait to Start Indicator ON and OFF with a scan tool. Verify that the Wait to Start Indicator turns ON and OFF with each command.
    • If Wait to Start Indicator does not turn on and off 

      Refer to Circuit/System Testing.

    • Go to next step: If Wait to Start Indicator turns on and off 
  3. Command the Wait to Start Indicator ON and OFF with a scan tool while observing the following control circuit status parameters:
    • Wait To Start Indicator Control Circuit Low Voltage Test Status
    • Wait To Start Indicator Control Circuit Open Test Status
    • Wait To Start Indicator Control Circuit High Voltage Test Status

      Each parameter should display OK or Not Run.

    • If parameter displays Malfunction 

      Refer to Circuit/System Testing.

    • Go to next step: If parameter does not display Malfunction 
  4. 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.
  5. Verify the DTC does not set.
    • If the DTC sets 

      Refer to Circuit/System Testing.

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