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:

 Parts Location

PARTS LOCATION ILLUSTRATION *1 ECM *2 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - ST RELAY - EFI-MAIN NO. 4 FUSE - J/B-B FUSE ILLUSTRATION *1 SHIFT LOCK CONTROL UNIT ASSEMBLY - TRANSMISSION CONTROL SWITCH *2 SHIFT PADDLE SWITCH LH (TRANSMISSION SHIFT SWIT

 Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open (P011515)

DESCRIPTION Refer to DTC P011511. Click here HINT: When DTC P011515 is stored, the ECM enters fail-safe mode. During fail-safe mode, the engine coolant temperature is estimated to be 80°C (176°F) by the ECM. Fail-safe mode continues until a pass condition is detected. DTC No. Detection Item

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