Lexus ES manuals

Lexus ES: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

If DTCs are not output but the malfunction persists, use the following table to determine which circuits to inspect for each problem symptom.

HINT:

Refer to each inspection procedure for related problem symptoms.

Electronically Controlled Brake System

Symptom

Suspected Area

Link

ABS warning light abnormal (Remains on)

Refer to the procedure for "ABS Warning Light Remains ON"

ABS warning light abnormal (Does not come on)

Refer to the procedure for "ABS Warning Light does not Come ON"

Brake warning light / red (malfunction) abnormal (Remains on)

Refer to the procedure for "Brake Warning Light Remains ON"

Brake warning light / red (malfunction) abnormal (Does not come on)

Refer to the procedure for "Brake Warning Light does not Come ON"

Brake hold standby indicator light abnormal

Refer to the procedure for "Brake Hold Standby Indicator Light Circuit"

Brake hold operated indicator light abnormal

Refer to the procedure for "Brake Hold Operated Indicator Light Circuit"

Slip indicator light abnormal (Remains on)

Refer to the procedure for "Slip Indicator Light Remains ON"

Slip indicator light abnormal (Does not come on)

Refer to the procedure for "Slip Indicator Light does not Come ON"

TRAC does not operate

Refer to the procedure for "TRAC does not Operate"

Excessive brake pedal travel (No fluid leaks and no air in system)

Refer to the procedure for "Excessive Brake Pedal Travel (No Fluid Leaks and No Air in System)"

ABS operates before necessary when braking

Refer to the procedure for "ABS Operates Before Necessary When Braking"

VSC does not operate or VSC does not operate correctly

Refer to the procedure for "VSC does not Operate or VSC does not Operate Correctly"

Brake actuator operation sound is loud during initial check

Refer to the procedure for "Brake Actuator Operation Sound is Loud during Initial Check"

VSC OFF switch abnormal

Refer to the procedure for "VSC OFF Switch Circuit"

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 RL Speed Sensor Wrong Installation (X0453)

DESCRIPTION Code Tester Display Measurement Item Trouble Area X0453 RL Speed Sensor Wrong Installation History of rear speed sensor LH being installed incorrectly Rear Speed Sensor

 RL Speed Sensor Wrong Installation (X0453)

DESCRIPTION Code Tester Display Measurement Item Trouble Area X0453 RL Speed Sensor Wrong Installation History of rear speed sensor LH being installed incorrectly Rear Speed Sensor

 RR Speed Sensor Wrong Installation (X0454)

DESCRIPTION Code Tester Display Measurement Item Trouble Area X0454 RR Speed Sensor Wrong Installation History of rear speed sensor RH being installed incorrectly Rear Speed Sensor

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 Open in One Side of Bus 3 Branch Line

DESCRIPTION When the CAN bus main lines are normal (no open, short to ground, short to +B or short between lines) and there is an ECU or sensor on the "Communication Bus Check" screen that is indicated as not communicating or whose connection status on the "Communication Bus Check" screen changes in

 Installation

INSTALLATION PROCEDURE 1. INSTALL TRANSMISSION FLOOR SHIFT ASSEMBLY (a) Engage the clamp to connect the wire harness to the transmission floor shift assembly. (b) Connect the shift lock control ECU connector. (c) Engage the clamp to connect the wire harness to the transmission floor shift assembly.

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