Lexus ES: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
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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.
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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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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 *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
SEE MORE:
DESCRIPTION Each headlight ECU sub-assembly and headlight leveling motor communicate via LIN communication. The headlight leveling motor operates according to power supplied and automatic headlight beam level control signals from its respective headlight ECU sub-assembly and sends its operating stat
VEHICLE CONTROL HISTORY DESCRIPTION
Vehicle Control History is a function that captures and stores ECU data when triggered by specific vehicle behavior.
It may be possible to determine the cause of the malfunction by checking the vehicle history information and freeze frame data.
The number o
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