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Home >> Toyota >> 2009 >> RAV4 Base, 2.5 F, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake Control >> Vehicle Stability Control System >> DTC C1203 ECM Communication Circuit Malfunction >> Inspection Procedure

Inspection Procedure

  1. CHECK PART NUMBER (SKID CONTROL ECU AND ECM) 
    1. Check that the proper skid control ECU and ECM are installed.

    Result 

    RESULT CHART

    Result Proceed to
    Proper ECUs are installed. for 2AR-FE A
    for 2GR-FE B
    Proper ECUs are not installed. C

    B : REPLACE ECM  (See INSTALLATION )

    C : REPLACE ECUS WITH PROPER ONES 

    A : REPLACE ECM  (See REMOVAL )

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