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Home >> Lexus >> 2007 >> LX 470 >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> Vehicle Stability Control System >> DTC U0073/94 Control Module Communication Bus OFF; DTC U0100/65 Lost Communication with ECM / PCM >> Inspection Procedure
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Inspection Procedure

HINT:

This circuit uses the CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system will be output.

  1. RECONFIRM DTC 
    1. Clear the DTC.
    2. Start the engine.
    3. Drive the vehicle at a speed of 15 km/h (9 mph) and turn the steering wheel to the right and left.
    4. Check that no CAN communication system DTC is output.
    5. If ABS and VSC DTCs are output, record them.

      Result: 

      RESULT

      Result Proceed to
      DTC is output for the CAN communication system A (see HOW TO PROCEED WITH TROUBLESHOOTING )
      DTC is output (ABS and VSC DTCs are output) B
      DTC is not output C

    B: REPAIR CIRCUIT INDICATED BY OUTPUT CODE 

    C: END 

    A:  Go to CAN COMMUNICATION SYSTEM