Lexus ES: Utility
UTILITY
NOTICE:
- When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle and a DTC may be stored.
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When the millimeter wave radar sensor assembly is replaced with a new one, adjustment of the millimeter wave radar sensor beam axis must be performed.
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Front Beam Axis Adjustment
HINT:
Front Beam Axis Adjustment is used to calibrate the beam axis of millimeter wave radar sensor assembly.
(a) Perform Front Beam Axis Adjustment according to the display on the Techstream.
Body Electrical > Front Radar Sensor > Utility| Tester Display |
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| Front Beam Axis Adjustment |
Front Beam Axis Misalignment Reading
HINT:
Front Beam Axis Misalignment Reading is used to check the amount of misalignment of the millimeter wave radar sensor assembly.
(a) Perform Front Beam Axis Misalignment Reading according to the display on the Techstream.
Body Electrical > Front Radar Sensor > Utility| Tester Display |
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| Front Beam Axis Misalignment Reading |
Front Radar Acceleration Sensor Calibration
HINT:
Front Radar Acceleration Sensor Calibration is used to perform calibration of the acceleration sensor in the millimeter wave radar sensor assembly.
(a) Perform Front Radar Acceleration Sensor Calibration according to the display on the Techstream.
Body Electrical > Front Radar Sensor > Utility| Tester Display |
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| Front Radar Acceleration Sensor Calibration |
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of
Terminals Of Ecu
TERMINALS OF ECU NOTICE:
Turning the power switch on (IG) with connectors disconnected may cause DTCs to be stored. Make sure to clear the DTCs after inspection has been performed.
Do not apply e
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical > Front Radar Senso
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Open in IG Circuit (B242E)
DESCRIPTION The headlight ECU sub-assembly operates using the power source voltage input from the IG terminal and ECUB terminal. The IG terminal power source voltage is supplied by turning the IG1-NO. 1 relay to ON. The headlight ECU sub-assembly receives power switch on (IG) signals from the main b
Removal
REMOVAL
PROCEDURE
1. REMOVE COWL TOP VENTILATOR LOUVER SUB-ASSEMBLY
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2. REMOVE FRONT CENTER UPPER SUSPENSION BRACE SUB-ASSEMBLY
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3. REMOVE UNION TO CHECK VALVE HOSE
(a) Disengage the clamp to separate the union to check valve hose from
the air tube.
