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HOMESERVICE MANUALSCHEVROLET2019TRAX PREMIER, AWDREPAIR AND DIAGNOSISENGINE MECHANICALSTARTERBATTERY, CHARGING SYSTEM AND STARTING SYSTEMDIAGNOSTIC INFORMATION AND PROCEDURESSTARTER MALFUNCTION (KL9)CIRCUIT/SYSTEM VERIFICATION
2019 Chevrolet Trax Premier, AWD

Circuit/System Verification

2019 Chevrolet Trax Premier, AWDSECTION Circuit/System Verification
  1. Ignition - On/Vehicle - In Service Mode
    2. NOTE:

    Steps 2 and 3 are for vehicles equipped with a push button ignition switch. If the vehicle is not equipped with a push button ignition switch, continue to step 4.

  2. Brake Pedal - Applied

    Verify the scan tool parameter:Brake Pedal Position Sensor. = Active

    • If not the specified value 

      Refer to Stop Lamps Malfunction for diagnosis of the B22 Brake Pedal Position Sensor.

    • Go to next step: If the specified value 
  3. Brake Pedal - Released

    Verify the scan tool parameter:Brake Pedal Position Sensor. = Inactive

    • If not the specified value 

      Refer to Stop Lamps Malfunction for diagnosis of the B22 Brake Pedal Position Sensor.

    • Go to next step: If the specified value 
  4. Ignition - On/Vehicle - In Service Mode
  5. Verify that no DTCs are set.
    • Go to next step: If no DTC is set 
  6. {If available}Verify the scan tool parameter:

    {Automatic Transmission}Park/Neutral Position Switch = Park

    or

    {Manual Transmission}Verify the scan tool parameter:CPP Sensor = Applied

    • If not the specified state 

      {Automatic Transmission}Refer to the appropriate diagnostic procedure listed below:

      DTC P0851 - Park/Neutral Position Switch

      or

      {Manual Transmission}Refer to the appropriate diagnostic procedure listed below:

      DTC P0806-P0808 - CPP Sensor

    • Go to next step: If the specified state 
  7. Ignition - Crank

    Verify the scan tool parameter:

    1. {Without BTM}5V Ignition Switch = Crank Request
    2. Accessory = Inactive
    3. {With BTM}Engine Control Module - Power Mode = Crank Request
    • Go to next step: If the specified state 
  8. Verify the scan tool parameter:Crankshaft Position Active Counter = Does not Increment
    • If the parameter value increments 

      Replace the component:B26 Crankshaft Position Sensor

    • Go to next step: If the parameter value does not increment 
  9. Verify the component works as specified:Engine - Rotate(s)
    • If the component does not work as specified 

      Verify the following conditions do not exist:

    1. Accessory drive belt component - Seized
    2. Engine - Seized
    • Go to next step: If the component works as specified 
  10. Ignition - Crank

    Verify the component works as specified:

    • M64 Starter Motor = Activated - Rotate(s)
    • Engine = Cranking
    • {M64 Starter Motor = Rotate(s) & Cranking = No}If the component does not work as specified 

      Refer to:Test 1

    • {M64 Starter Motor Rotate(s) & Starter Pinion = Clicks}If the component does not work as specified 

      Refer to:Test 2

    • Go to next step: If the component works as specified 
  11. All OK.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.