Lexus ES manuals

Lexus ES: Precaution

PRECAUTION

WHEN USING TECHSTREAM

CAUTION:

Observe the following items for safety reasons:

  • Before using the Techstream, read the instruction manual.
  • Prevent the Techstream cable from being caught on the pedals, shift lever or steering wheel when driving with the Techstream connected to the vehicle.
  • When driving the vehicle for testing purposes using the Techstream, 2 persons are required. One to drive the vehicle, and another to operate the Techstream.

INITIALIZATION

NOTICE:

  • Perform Registration (VIN registration) after replacing the ECM.

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  • Perform Learning Value Reset and Idle Learning after replacing or servicing parts related to engine operation.

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  • Perform "Grille Shutter Control Mode Switching and Grille Shutter Initialization" after replacing the swing grille actuator assembly or radiator shutter sub-assembly.

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  • When the cable is disconnected from the negative (-) auxiliary battery terminal, initialize the following system(s) after the cable is reconnected.

    System Name

    See Procedure

    Lane Control System (for HV Model)

    Pre-collision System (for HV Model)

    Parking Support Brake System (for HV Model)

    Lighting System (for HV Model)

    Parking Assist Monitor System (for HV Model)

    Panoramic View Monitor System (for HV Model)

    Power Trunk Lid System (for HV Model)

PRECAUTIONS FOR INSPECTING HYBRID CONTROL SYSTEM

(a) Refer to Hybrid Control System.

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NOTICE FOR HYBRID CONTROL SYSTEM ACTIVATION

(a) Refer to Hybrid Control System.

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 Definition Of Terms

DEFINITION OF TERMS Term Definition Monitor Description Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details). Related DTCs Group of di

 Parts Location

PARTS LOCATION ILLUSTRATION *1 CANISTER *2 FUEL PUMP (for Low Pressure Side) *3 MASS AIR FLOW METER SUB-ASSEMBLY *4 RADIATOR SHUTTER ASSEMBLY RADIATOR SHUTTER SUB-ASSEMBLY SWI

 System Diagram

SYSTEM DIAGRAM

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 Shut Down Signal Circuit

DESCRIPTION The cause of the malfunction may be a shutdown signal. Check whether there is a shutdown signal +B short circuit. Related Parts Check Area Inspection HSDN terminal Check that the HSDN terminal voltage decreases to check for an open or short circuit while READY off (IG ON).

 Installation

INSTALLATION PROCEDURE 1. INSTALL FUEL PUMP CONTROL ECU BRACKET (a) Install the fuel pump control ECU bracket to the fuel pump control ECU with the 2 bolts. Torque: 4.5 N·m {46 kgf·cm, 40 in·lbf} 2. INSTALL FUEL PUMP CONTROL ECU (a) Install the fuel pump control ECU to the vehicle body with the

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