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Home >> Lexus >> 2008 >> RX 350 AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> Vehicle Stability Control System >> DTC C1203/53 ECM Communication Circuit Malfunction >> Inspection Procedure

Inspection Procedure

  1. CHECK PART NUMBER (ECM AND BRAKE ACTUATOR ASSEMBLY) 
    1. Check that the proper ECM and brake actuator assembly (skid control ECU) are installed.

      OK: 

      Proper ECUs are installed. 

    NG: REPLACE ECUS WITH PROPER ONES 

    OK: REPLACE ECM (See  REMOVAL  )