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Home >> Lexus >> 2008 >> IS 250 RWD, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Theft Deterrent / Keyless Entry) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function) >> Diagnosis System
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Diagnosis System

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
  1. DESCRIPTION 
    1. Push-button start function data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle When the function seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs
  2. CHECK DLC3 
    1. Check DLC3 (See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS )
  3. INSPECT BATTERY VOLTAGE 

    Standard Voltage: 

    11 to 14 V 

    If the voltage is below 11 V, recharge or replace the battery before proceeding