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Check For Intermittent Problems

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR INTERMITTENT PROBLEMS 
    1. Perform a simulation test (See HOW TO PROCEED WITH TROUBLESHOOTING ).
      1. For the simulation test, reproduce the driving conditions that were present when the trouble occurred. These conditions should be based on the customer's comments and freeze frame data that is recorded with DTCs, such as the opening angle of the accelerator pedal, SOC (state of charge), engine coolant temperature, engine rpm, and MG1/MG2 rpm and torque.
    2. Check the connector(s) and terminal(s) (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    3. Wiggle the harness and connector(s) (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE ).
    4. Heat or cool suspected parts (See HOW TO PROCEED WITH TROUBLESHOOTING ).