Lexus ES manuals

Lexus ES: 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.
Front Radar Sensor System

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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 VC Output Circuit

DESCRIPTION The ECM constantly generates a 5 V power source voltage from the battery voltage supplied to the +B, +B2 (BATT) terminals to operate the microprocessor. The ECM also provides this power to the sensors through the VC output circuit. When the VC circuit has a short circuit, the microproce

 Linear Solenoid Valve Offset Learning undone (C1345,C1368)

DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) stores the individual characteristics of each linear solenoid built into the brake booster with master cylinder assembly. Based on the stored information, the skid control ECU (brake booster with master cylinder assembly)

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