Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2019TRAX PREMIER, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 64 (SECONDARY AND CONFIGURABLE CUSTOMER CONTROLS)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B1405CIRCUIT/SYSTEM TESTING
2019 Chevrolet Trax Premier, AWD
Circuit/System Testing
2019 Chevrolet Trax Premier, AWDSECTION Circuit/System Testing
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.
- Ignition OFF, disconnect the X2 and the X1 harness connector at the K9 Body Control Module.
- Test for less than 5 Ξ© between the X2 harness connector ground circuit terminal 2 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Test for less than 5 Ξ© between the X1 harness connector ground circuit terminal 1 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Ignition ON, test for more than 11 V between the X2 harness connector terminal 1 and ground.
- If less than the specified value test the control circuit for an open/high resistance.
- If all circuits test normal, replace the K9 Body Control Module.
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.