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Home >> Lexus >> 2008 >> SC 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Door Lock) >> Power Door Lock Control System >> Speed-sensitive Automatic Door Lock Function by Vehicle Speed does not Work >> Inspection Procedure
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Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK SPEEDOMETER FUNCTION 
    1. Check that the speedometer operates properly.

      OK: Speedometer operates properly. 

    NG:  GO TO METER / GAUGE SYSTEM

    OK: Go to Next Step 

  2. CHECK DOOR LOCK FUNCTION 
    1. Check that the door lock operates normally.

      OK: Door lock operates normally. 

    NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

    OK: Go to Next Step 

  3. CHECK THAT DOOR LOCK FUNCTIONS OTHER THAN AUTOMATIC LOCK FUNCTION BY VEHICLE SPEED OPERATE PROPERLY 

    Result: 

    RESULT CHART

    Result Proceed to
    All doors do not operate A
    Driver side door does not operate B
    Front passenger side door does not operate C

    B: REPLACE MULTIPLEX NETWORK FRONT DOOR ECU LH 

    C: REPLACE MULTIPLEX NETWORK FRONT DOOR ECU RH 

    A: REPLACE THEFT WARNING ECU