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Home >> Lexus >> 2016 >> IS 350 F Sport, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FSE) - Diagnostics - Introduction (1 Of 4) >> SFI System >> Check For Intermittent Problems [04/2013 - 10/2017] >> Check For Intermittent Problems [04/2013 - 10/2017]
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Check For Intermittent Problems [04/2013 - 10/2017]

HINT: 

Inspect the vehicle ECM using check mode. Intermittent problems are easier to detect with the Techstream when the ECM is in check mode. In check mode, the ECM uses 1 trip detection logic, which is more sensitive to malfunctions than normal mode (default), which uses 2 trip detection logic.

  1. Clear the DTCs.

    Refer to DTC CHECK / CLEAR [04/2013 - 10/2017] 

  2. Switch the ECM from normal mode to check mode using the Techstream.

    Refer to CHECK MODE PROCEDURE [04/2013 - 10/2017] 

  3. Perform a simulation test.

    Refer to HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - 06/2014] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [06/2014 - 08/2015] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 10/2016] , or refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2016 - 10/2017]

  4. Check and wiggle the harness(es), connector(s) and terminal(s).

    Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE [04/2013 - ]