DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0163-87: Lost Communication with Navigation Control Module Missing Message; DTC U0198-87: Lost Communication with Telematic Control Module "A" Missing Message; DTC U0293-87: Lost Communication With Hybrid Powertrain Control Module Missing Message [12/2024 - ]: Procedure

2025 Toyota 4Runner SR5, 4WDSECTION Procedure
  1. GO TO CAN COMMUNICATION SYSTEM 

    HINT: 

    If CAN communication DTCs are output, refer to How to Proceed with Troubleshooting for the CAN communication system.

    Refer to "CAN COMMUNICATION SYSTEM". Refer To CAN COMMUNICATION SYSTEM (FOR GASOLINE MODEL) , or Refer To CAN COMMUNICATION SYSTEM (FOR 1MOTOR-HEV MODEL)

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END 

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.