FixVault

Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT CRUISE CONTROL ECU ASSY (DISTANCE CONTROL ECU) 
    1. Disconnect the cruise control ECU (distance control ECU) connector.
    2. Measure the voltage according to the value (s) in the table below.

      Standard: 

      TESTER CONNECTION CHART

      Tester connection Condition Specified value
      D2-1 (+B) - Body ground Ignition SW ON 10 to 14 V
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TESTER CONNECTION CHART

      Tester connection Condition Specified value
      D2-10 (SGND) - Body ground Always Below 1 Ω
      D2-12 (GND) - Body ground Always Below 1 Ω
      Fig 1: Disconnecting Cruise Control ECU (Distance Control ECU) Connector
      G03513929Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 
    2. OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See  PROBLEM SYMPTOMS TABLE  )