CHECK FOR INTERMITTENT PROBLEMS
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.
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How To Proceed With Troubleshooting
Basic InspectionLexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Vehicle Stability Control System: Left Front Wheel Speed Sensor Signal Stuck Low (C050023)
DESCRIPTION Refer to DTC C05001F. Click here DTC No. Detection Item DTC Detection Condition Trouble Area C050023 Left Front Wheel Speed Sensor Signal Stuck Low Any of the following is detected:
When the +BS terminal voltage is 17.4 V or less at a vehicle speed of 10 km/h (6 mph ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: Rough Idling
DESCRIPTION Problem Symptom Suspected Area Trouble Area
Engine speed fluctuation due to abnormal combustion
Idle speed too low or high
Strong engine vibration due to above symptoms
Ignition malfunction
Deviation in air fuel ratio (Excessive or insufficient intake air volume ...