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Home >> Lexus >> 2025 >> NX 350h >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Heating / Air Conditioning System - Diagnostic Codes, Circuit Tests & Symptom Tests) >> AIR CONDITIONING SYSTEM (for Gasoline Model) >> 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 [11/2021 - ] >> Procedure

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 [11/2021 - ]: Procedure

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  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 HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]

    Result

    Proceed to
    NEXT

    Result: 

    NEXT 

    END