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HOMESERVICE MANUALSCHEVROLET2019TRAX PREMIER, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 22 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B1019CIRCUIT/SYSTEM VERIFICATION
2019 Chevrolet Trax Premier, AWD

Circuit/System Verification

2019 Chevrolet Trax Premier, AWDSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2018 Chevrolet Trax and 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

DTC B1019 can set after the inflatable restraint sensing and diagnostic module has been replaced and/or reprogrammed before the setup procedure is completed. The setup procedure cannot be completed if DTC B1019 is set as current or history. If a short or open is detected in a deployment circuit prior to the setup procedure being performed, the inflatable restraint sensing and diagnostic module will set DTC B1019.

  1. Ignition ON.
  2. Verify no other K36 Inflatable Restraint Sensing and Diagnostic Module DTCs are set.
    • Go to next step: If no other K36 Inflatable Restraint Sensing and Diagnostic Module DTCs are set 
  3. Verify the enabled impact sensors identified in the scan tool data list match the number of actual impact sensors installed on the vehicle.
    • If the number of enabled impact sensors do not match 
    1. Verify the correct K36 Inflatable Restraint Sensing and Diagnostic Module calibration file is loaded in the K36 Inflatable Restraint Sensing and Diagnostic Module.
      • If the K36 Inflatable Restraint Sensing and Diagnostic Module calibration file is correct and the vehicle contains an incorrect number of sensors, identify which sensors are missing to make the vehicle match the K36 Inflatable Restraint Sensing and Diagnostic Module impact sensor calibration scan tool data list.
      • Go to next step: If the calibration file is incorrect
    2. Reprogram the K36 Inflatable Restraint Sensing and Diagnostic Module. Refer to K36 Inflatable Restraint Sensing and Diagnostic Module: Programming and Setup
    • Go to next step: If the number of enabled impact sensors match 
  4. Verify the enabled deployment loops identified in the scan tool data list match the deployment loops installed on the vehicle.
    • If the number of enabled deployment loops do not match 
    1. Verify the correct K36 Inflatable Restraint Sensing and Diagnostic Module calibration file is loaded in the K36 Inflatable Restraint Sensing and Diagnostic Module.
      • If the K36 Inflatable Restraint Sensing and Diagnostic Module calibration file is correct and the vehicle contains an incorrect number of loops, identify which deployment loops are missing to make the vehicle match the K36 Inflatable Restraint Sensing and Diagnostic Module impact sensor calibration scan tool data list.
      • Go to next step: If the calibration file is incorrect
    2. Program the K36 Inflatable Restraint Sensing and Diagnostic Module. Refer to K36 Inflatable Restraint Sensing and Diagnostic Module: Programming and Setup
    • Go to next step: If the number of enabled deployment loops match 
  5. Verify a passenger presence system is equipped on the vehicle.
    • If a passenger presence system is not equipped on the vehicle 

      Replace the K36 Inflatable Restraint Sensing and Diagnostic Module.

    • Go to next step: If a passenger presence system is equipped on the vehicle 
  6. Verify the scan tool Passenger Presence System Enable Status parameter is Enabled.
    • Go to next step: If the Passenger Presence System parameter is Enabled 
  7. Verify the scan tool Passenger Presence System Learn Status parameter is Learned.
    • If the Passenger Presence System Learn Status parameter is not Learned 
    1. Verify the scan tool can communicate with the passenger presence system.
      • Go to next step: If the scan tool communicates
    2. Ignition OFF, disconnect the scan tool. It may take up to 2 min for all vehicle systems to power down. Ignition ON.
    3. Verify DTC B1019 is not set as current.
      • Go to next step: If the DTC is not set as current
    4. All OK.
    • Go to next step: If the Passenger Presence System Learn status is Learned 
  8. Replace the K36 Inflatable Restraint Sensing and Diagnostic Module.
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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.