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.
Panoramic Moon Roof System

Symptom

Suspected Area

Link

Key-linked or wireless transmitter-linked function does not operate

Refer to the "Key-linked or wireless transmitter-linked function does not operate".

Key-off operation function operates even if operating conditions are not satisfied

Refer to the "Key-off operation function operates even if operating conditions are not satisfied".

Panoramic moon roof system does not operate

Refer to the "Panoramic moon roof system does not operate".

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 Terminals Of Ecu

TERMINALS OF ECU CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY) (a) Disconnect the Q1 sliding roof ECU (sliding roof drive gear assembly) connector. (b) Measure the resistance and voltage

 Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION (a) Panoramic moon roof system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfuncti

 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 / Sliding Roof or Sli

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 Components

COMPONENTS ILLUSTRATION *1 BATTERY SERVICE HOLE COVER *2 SERVICE PLUG GRIP ILLUSTRATION *1 CONNECTOR COVER ASSEMBLY *2 ENGINE ROOM MAIN WIRE Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)

 Disassembly

DISASSEMBLY CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. PROCEDURE 1. REMOVE HEADLIGHT ECU SUB-ASSEMBLY Click here 2. REMOVE HEADLIGHT GASKET Click here 3. REMOVE HEADLIGHT RIM (for TMC Made) Click here 4.

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