Lexus ES: Problem Symptoms Table
Lexus ES (XZ10) Service Manual / Brake / Parking Brake / Electric Parking Brake System (for Hv Model) / 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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Telematics Transceiver Disconnected (B15DB)
DESCRIPTION If the radio receiver assembly cannot detect the DCM (telematics transceiver) for a certain period of time (90 seconds) after the engine switch is turned on (ACC) and the radio receiver assembly confirms that the information is missing by checking past DCM (telematics transceiver) recogn
Installation
INSTALLATION 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. INSTALL REAR SUSPENSION SUPPORT ASSEMBLY (a) Secure the rear suspension support assembly in a vise using aluminum plates. NOTICE: Do not ove
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