Lexus ES: Problem Symptoms Table
Lexus ES (XZ10) Service Manual / Engine & Hybrid System / Cruise Control / Front Radar Sensor System (for Gasoline Model) / 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 probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| "Pre-Collision System Unavailable Clean Sensor" is displayed | Vehicle Control History | |
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Terminals Of Ecu
TERMINALS OF ECU NOTICE:
Turning the engine 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
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical > Front Radar Sens
Freeze Frame Data
FREEZE FRAME DATA DESCRIPTION (a) Whenever a front radar sensor system DTC is stored, the millimeter wave radar sensor assembly stores the current vehicle state as Freeze Frame Data. CHECK FREEZE FRAM
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Terminals Of Ecu
TERMINALS OF ECU CLEARANCE WARNING ECU ASSEMBLY (a) Disconnect the N41 clearance warning ECU assembly connector. (b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description C
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. HINT: Using the Techstream to read the Data List allows the values or states of
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