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HOMESERVICE MANUALSCHEVROLET2025TAHOE COMMERCIAL, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOLLISION/AVOIDANCEDRIVER ASSISTANCE SYSTEMS - DIAGNOSTIC INFORMATION AND PROCEDURESDIAGNOSTIC INFORMATION AND PROCEDURESDTC B1E3ECIRCUIT/SYSTEM VERIFICATION
2025 Chevrolet Tahoe Commercial, RWD

Circuit/System Verification

2025 Chevrolet Tahoe Commercial, RWDSECTION Circuit/System Verification
  1. Verify no other DTCs related to the K73 Telematics Control Module are set.
    • Go to next step: If no other DTCs are set 
  2. Clear DTCs and operate the vehicle in the conditions that the customer experienced.
  3. Verify DTC B1E3E does not set.
    • If DTC B1E3E is set 
    1. Replace the K73 Telematics Control Module.
    2. Clear DTCs and operate the vehicle.
    3. Verify the DTC does not reset.
      • If the DTC resets, replace the K124 Image Processing Module
      • Go to next step: If the DTC does not reset

        Go to next step: All OK.

    • Go to next step: If DTC B1E3E is not set 
  4. All OK. A fault is currently not present and may be an intermittent condition.
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.