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 System 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"

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 System Diagram

SYSTEM DIAGRAM

 Terminals Of Ecu

TERMINALS OF ECU CHECK PARKING BRAKE ECU (BRAKE ACTUATOR ASSEMBLY) *a Front view of wire harness connector (to Parking Brake ECU (Brake Actuator Assembly)) - - (a) Disconnect the A54 park

 Test Mode Procedure

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

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 System Description

SYSTEM DESCRIPTION When the trunk and fuel switch assembly (fuel lid opener switch) is operated, the pressure in the fuel tank is decreased and a message is displayed on the multi-information display. After the pressure has decreased, the ECM turns on the FUEL OPN relay to operate the fuel lid lock

 Fuel Rail / System Pressure - Too High (P008800)

DESCRIPTION Refer to DTC P008700. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note P008800 Fuel Rail / System Pressure - Too High Although the ECM is requesting the fuel pump assembly (for high pressure side) to open the spill control va

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