Lexus NX: Acoustic Vehicle Alerting System
Lexus NX Service Manual / Vehicle Exterior / Acoustic Vehicle Alerting System / Acoustic Vehicle Alerting System
- Precaution
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Operation Check
- Problem Symptoms Table
- Terminals Of Ecu
- Dtc Check / Clear
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Speaker Circuit (B1350)
- Lost Communication with Brake System Control Module (U0129,U0140,U0293)
- There is No Sound Made
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Precaution
PRECAUTION PRECAUTIONS FOR VEHICLE PROXIMITY NOTIFICATION SYSTEM (a) In the following cases, the volume or tone of the sound might change: (1) If the vehicle is parked in a very hot or cold environmen
Parts Location
PARTS LOCATION ILLUSTRATION *1 VEHICLE APPROACHING SPEAKER ASSEMBLY *2 VEHICLE APPROACHING SPEAKER CONTROLLER *3 HYBRID VEHICLE CONTROL ECU *4 INSTRUMENT PANEL JUNCTION BLOCK ASSEM
System Diagram
SYSTEM DIAGRAM
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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
Cooling Fan Circuit
DESCRIPTION The ECM calculates an appropriate cooling fan speed based on the engine coolant temperature, air conditioning switch condition, refrigerant pressure, hybrid coolant temperature, engine speed and vehicle speed, and sends the signals to the cooling fan ECU to regulate the cooling fans. The
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