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.
  • When a symptom indicates that a service is malfunctioning, use the Techstream to check whether the service subscription is active.

    Click here TELEMATICS > TELEMATICS SYSTEM > DATA LIST / ACTIVE TEST

Application Function

Symptom

Suspected Area

Link

Vehicle status cannot be checked using the application.

Proceed to "Remote Service Malfunction"

Vehicle status alerts are not received by the application even if remote notification operation conditions are met.

Proceed to "Remote Service Malfunction"

Vehicle cannot be operated remotely using the application.

Perform remote door lock and unlock registration and check if the problem symptom recurs

Proceed to "Remote Service Malfunction"

Remote Engine Start and Stop Function (Using electrical key transmitter sub-assembly)

Symptom

Suspected Area

Link

Engine does not start by remote engine start function.

Proceed to "Remote Engine Starter does not Operate"

Engine does not stop by remote engine stop function.

Proceed to "Remote Engine Starter does not Operate"

Warning Notification Function

Symptom

Suspected Area

Link

The multi-display screen does not show a warning message even though a warning light turns on or the multi-information display indicates a warning.

Proceed to "Warning Notification Function Malfunction"

The multi-display screen shows a warning message even though no warning lights are on and the multi-information display does not indicate a warning.

Proceed to "Warning Notification Function Malfunction"

The multi-display screen shows a warning message different from the warning light or the multi-information display.

Proceed to "Warning Notification Function Malfunction"

READ NEXT:

 Remote Engine Starter does not Operate

WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the DCM (telematics transceiver), refer to Registration. Click here PROCEDURE 1. CHECK SMART KEY SYSTEM (for Start Function)

 Remote Service Malfunction

PROCEDURE 1. CHECK CAN COMMUNICATION SYSTEM (a) Connect the Techstream to the DLC3. (b) Turn the engine switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Bus Check. C

 System Description

SYSTEM DESCRIPTION OUTLINE (a) Lexus Enform Remote, which enables the user to check the vehicle status and operate the vehicle from a remote location, is used. (b) Lexus Enform Remote is available by

SEE MORE:

 Remote Up / Down Function does not Operate

DESCRIPTION When the power switch on (IG), the multiplex network master switch assembly sends remote up and down signals to each power window regulator motor assembly via LIN communication. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: The power window control system uses the LIN communication

 Transmission Fluid Temperature Sensor "A" Circuit Short to Battery or Open (P071015)

DESCRIPTION The ATF temperature sensor converts the automatic transaxle fluid (ATF) temperature into a resistance value for use by the ECM. The ECM applies voltage to the temperature sensor through terminal THO1 of the ECM. The sensor resistance changes with the ATF temperature. As the temperature r

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