Lexus ES: Installation

Lexus ES (XZ10) Service Manual / Engine & Hybrid System / A25a-fxs (engine Control) / Air Fuel Ratio Sensor (for Sensor 1) / Installation

INSTALLATION

PROCEDURE

1. INSTALL AIR FUEL RATIO SENSOR

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor.

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(a) Using SST, install the air fuel ratio sensor to the exhaust manifold (TWC: Front Catalyst).

SST: 09224-00012

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

If the air fuel ratio sensor has been struck or dropped, replace it.

HINT:

Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
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When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 180 mm (7.09 in.)):
37.7 N*m (384 kgf*cm, 28 ft.*lbf)

*a	Torque Wrench Fulcrum Length

(b) Connect the air fuel ratio sensor connector.

*a	Tie Band
*b	Wire Harness Clamp

2. INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY

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3. INSPECT FOR EXHAUST GAS LEAK

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4. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing the air fuel ratio sensor.

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Clearance Warning ECU Power Source Circuit

DESCRIPTION This circuit provides power to operate the clearance warning ECU assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure. PROCEDURE 1. CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING EC

Lexus ES: Installation

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Air Fuel Ratio Sensor (for Sensor 2)

Components

Removal

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Clearance Warning ECU Power Source Circuit