Component Testing

2019 Chevrolet Trax Premier, AWDSECTION Component 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.
  1. Ignition OFF.
  2. Disconnect a KR20 Cooling Fan Relay.
  3. Test for 70 - 110 Ω between terminals 85/2 and 86/1.
    • If less than or greater than the specified range 

      Replace the KR20 Cooling Fan Relay.

    • Go to next step: If within the specified range 
  4. Test for infinite resistance between the following terminals:
    • 30/3 and 86/1
    • 30/3 and 87/5
    • 30/3 and 85/2
    • 85/2 and 87/5
      • If less than infinite resistance 

        Replace the KR20 Cooling Fan Relay.

      • Go to next step: If infinite resistance 
  5. Install a 20 A fused jumper wire between relay terminal 85/2 and 12 V.
  6. Install a jumper wire between relay terminal 86/1 and ground.
  7. Test for less than 2 Ω between terminals 30/3 and 87/5.
    • If 2 Ω or greater 

      Replace the KR20 Cooling Fan Relay.

    • Go to next step: If less than 2 Ω 
  8. All OK.
RENDER: 1.0x

NO RELATED

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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.