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Home >> Lexus >> 2011 >> HS 250h L4-2.4L (2AZ-FXE) Hybrid >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Initial Inspection and Diagnostic Overview >> Check For Intermittent Problems
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Check For Intermittent Problems





2AZ-FXE ENGINE CONTROL: SFI SYSTEM: CHECK FOR INTERMITTENT PROBLEMS

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

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Switch the hybrid vehicle control ECU from normal mode to check mode using the Techstream Check Mode Procedure.
(c) Perform a simulation test How To Proceed With Troubleshooting.
(d) Check and wiggle the harness(es), connector(s) and terminal(s) Electronic Circuit Inspection Procedure.
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