Lexus ES manuals

Lexus ES: FL Speed Sensor Wrong Installation (X0451)

DESCRIPTION

Code

Tester Display

Measurement Item

Trouble Area

X0451

FL Speed Sensor Wrong Installation

History of front speed sensor LH being installed incorrectly

Front speed sensor LH

PROCEDURE

1.

CHECK FOR DTCs (HEALTH CHECK)

(a) Perform the Health Check using the Techstream.

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

2.

CHECK PART NUMBER (FRONT SPEED SENSOR LH)

(a) Check that the front speed sensor LH is installed.

OK:

Proper front speed sensor LH is installed.

NOTICE:

If it is necessary to remove components in order to check the front speed sensor LH, follow the relevant installation and removal procedures and precautions for those components.

NG

REPLACE FRONT SPEED SENSOR LH

OK

3.

CLEAR VEHICLE CONTROL HISTORY

(a) Using the Techstream, clear the Vehicle Control History.

Chassis > Brake > Utility

Tester Display

Vehicle Control History (RoB)

NEXT

4.

CHECK VEHICLE CONTROL HISTORY

(a) Using the Techstream, check for Vehicle Control History.

Chassis > Brake > Utility

Tester Display

Vehicle Control History (RoB)

Result

Proceed to

X0451 is not output

A

X0451 is output

B

A

USE SIMULATION METHOD TO CHECK

B

REPLACE FRONT SPEED SENSOR LH

READ NEXT:

 FR Speed Sensor Wrong Installation (X0452)

DESCRIPTION Code Tester Display Measurement Item Trouble Area X0452 FR Speed Sensor Wrong Installation History of front speed sensor RH being installed incorrectly Front Speed Senso

 Freeze Frame Data

FREEZE FRAME DATA FREEZE FRAME DATA/INFORMATION (a) Using the Techstream, check the vehicle condition (ECU, sensor) when the brake system operates or a DTC is output. CHECK FREEZE FRAME DATA AND INFOR

 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS (a) Interview the customer and confir

SEE MORE:

 Reassembly

REASSEMBLY PROCEDURE 1. INSTALL OIL PUMP ROTOR SET (a) Coat the drive rotor and driven rotor with engine oil and place them into the timing chain cover assembly with the rotor marks facing up. Check that the rotors rotate smoothly. *a Rotor Mark 2. INSTALL OIL PUMP COVER

 System Description

SYSTEM DESCRIPTION FRONT WIPER AND WASHER CONTROL FUNCTION Control/Function Description Wiper speed regulation Maintains the default speed of the wipers even when the supply voltage or resistance changes. Door open linked wiper suspend function*2 Stops the front wipers when the wind

© 2016-2026 Copyright www.lexguide.net