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.

Symptom

Suspected Area

Link

Electric parking brake does not operate

Proceed to "Electric Parking Brake does not Operate"

Parking brake indicator light does not illuminate (red) or turn off when parking brake is manually engaged and disengaged

Proceed to "Electric Parking Brake does not Operate"

Electric parking brake AUTO function (shift-linked function) does not operate (shift-linked parking brake does not lock or release)

Proceed to "Electric Parking Brake AUTO Function Circuit"

Message not displayed on multi-information display when AUTO function set to ON/OFF

Proceed to "Message Not Displayed on Multi-information Display When AUTO Function Set to ON/OFF"

Brake warning light (Yellow) remains on

Proceed to "Brake Warning Light (Yellow) Remains On"

READ NEXT:

 System Diagram

SYSTEM DIAGRAM

 Terminals Of Ecu

TERMINALS OF ECU CHECK SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) *a Front view of wire harness connector (to Skid Control ECU (Brake Actuator Assembly)) - - (a) Disconnect the A40 skid c

 Test Mode Procedure

TEST MODE PROCEDURE REAR BRAKE PAD REPLACEMENT MODE *1 Rear Disc Brake Piston *2 Nut *a The nut moves inward in pad replacement mode HINT: When replacing the rear disc brake pad a

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 Boosting Converter Voltage Sensor "A" Voltage Out of Range (P0E311C)

DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects a VL sensor malfunction. The cause of this malfunction may be one of the following: Inverter voltage (VL) sensor internal circuit malfunction Voltage sensor malfunction Motor generator control ECU (MG ECU) malfunction

 Customize Parameters

CUSTOMIZE PARAMETERS CUSTOMIZE PANORAMIC MOON ROOF SYSTEM NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make notes of the current settings before customizing. When troubleshooting a function, first make sure that the

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