Lexus ES manuals

Lexus ES: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

  • Before performing troubleshooting, change the grille shutter control mode to maintenance mode.

    Click here

  • If the swing grille actuator assembly has been replaced with a new one, perform initialization and change the grille shutter control mode.

    Click here

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

Grille shutter does not operate

Proceed to "Grille Shutter does not Operate"

Abnormal noise occurs during grille shutter operation

Check for ice, etc. around the shutters and links

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Swing grille actuator assembly

Radiator shutter sub-assembly

READ NEXT:

 Terminals Of Ecu

TERMINALS OF ECU CHECK SWING GRILLE ACTUATOR ASSEMBLY (a) Disconnect the z23 swing grille actuator assembly connector. (b) Measure the voltage and resistance according to the value(s) in the table be

 Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION (a) Grille shutter system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunc

 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 / (desired system) / T

SEE MORE:

 Customize Parameters

CUSTOMIZE PARAMETERS PROCEDURE 1. CUSTOMIZE LANE CONTROL SYSTEM (for HV Model) Click here 2. CUSTOMIZE LANE CONTROL SYSTEM (for Gasoline Model) Click here 3. CUSTOMIZE ROAD SIGN ASSIST SYSTEM (for HV Model) Click here 4. CUSTOMIZE ROAD SIGN ASSIST SYSTEM (for Gasoline Model) Click her

 Generator High-voltage Circuit

DESCRIPTION The cause of this malfunction may be the generator high-voltage circuit. Check the generator internal resistance and the connection condition of the high-voltage line between the inverter and generator to check whether there is an open or short circuit. Related Parts Check Area Insp

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