Lexus ES manuals

Lexus ES: Removal

Lexus ES (XZ10) Service Manual / Engine & Hybrid System / A25a-fxs (engine Control) / Knock Sensor / Removal

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during knock control sensor removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link
  • Replacement of throttle body assembly
  • Cleaning the deposits from the throttle body assembly
  • Replacement of EGR valve assembly
  • Gas leak from exhaust system is repaired
  • Replacement of knock control sensor

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

NOTICE:

This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.

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PROCEDURE

1. REMOVE INTAKE MANIFOLD

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2. REMOVE KNOCK CONTROL SENSOR

(a) Disconnect the knock control sensor connector.

(b) Remove the bolt and knock control sensor from the cylinder block sub-assembly.

NOTICE:

If the knock control sensor has been struck or dropped, replace it.

READ NEXT:

 Inspection

INSPECTION PROCEDURE 1. INSPECT KNOCK CONTROL SENSOR (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition Specified Cond

 Installation

INSTALLATION CAUTION / NOTICE / HINT NOTICE: This procedure includes the installation of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts. Click here

 Mass Air Flow Meter

SEE MORE:

 ECU Power Source Circuit

DESCRIPTION If the power switch is on (IG), the battery ECU assembly applies current to the MREL terminal to turn the IGCT relay on. This supplies power to the IGCT terminals. WIRING DIAGRAM CAUTION / NOTICE / HINT CAUTION: Before the following operations are conducted, take precautions to preve

 Replacement

REPLACEMENT CAUTION / NOTICE / HINT CAUTION: To avoid the danger of being burned, do not remove the reserve tank cap or drain cock plug while the coolant (for inverter) is still hot. Pressurized, hot coolant (for inverter) and steam may be released and cause serious burns. *1 Reserve Tank Cap

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