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HOMESERVICE MANUALSCHEVROLET2018TRAVERSE LS, 4WDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISDATA COMMUNICATION SYSTEM - DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC INFORMATION AND PROCEDURESDTC U2098CIRCUIT/SYSTEM TESTING
2018 Chevrolet Traverse LS, 4WD

Circuit/System Testing

2018 Chevrolet Traverse LS, 4WDSECTION Circuit/System Testing
NOTE:

Use the wiring schematics to determine which MOST devices are connected to the A11 Radio's MOST control circuit. Use the connector end views to identify the MOST control circuit terminal for each of those MOST devices.

  1. Ignition OFF, disconnect the harness connectors at an easily accessible MOST device that shares the A11 Radio's MOST control circuit. Ignition ON.
  2. Verify that the DTC U2098 or DTC U0029 02 remains current.
    • If the DTCs become history 

      Replace the MOST device that was just disconnected.

    • Go to next step: If any of the DTCs remain current 
  3. With the prior devices disconnected, repeat steps 1 and 2 for each MOST device on the MOST control circuit except the A11 Radio.
  4. Ignition OFF and all vehicle systems OFF, disconnect the X2 harness connector at the A11 Radio.
  5. Test for infinite resistance between the MOST control circuit terminal at the A11 Radio and ground.
    • If less than infinite resistance 

      Repair the short to ground on the circuit.

    • Go to next step: If infinite resistance 
  6. Replace the A11 Radio.
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.