Lexus ES manuals

Lexus ES: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

LIN Communication System

DTC No.

Detection Item

Link

B1206

P/W Master Switch Communication Stop

B1273

Sliding Roof ECU Communication Stop

B2321

D-Door Motor ECU Communication Stop

B2322

P-Door Motor ECU Communication Stop

B2323

RR-Door Motor ECU Communication Stop

B2324

RL-Door Motor ECU Communication Stop

B2325

LIN Communication Bus Malfunction

B2785

Communication Malfunction between ECUs Connected by LIN

B2786

No Response from Steering Lock ECU

B2789

No Response from ID BOX

B278C

Lost Communication with Power Source Control

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 Data List / Active Test

DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. Th

 Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION The main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) control the LIN communication system. LIN communication system data and Diagn

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Main Body or Smart A

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 Installation

INSTALLATION PROCEDURE 1. INSTALL REAR ENGINE MOUNTING INSULATOR (a) Engage the clamp and install the vacuum hose to the rear engine mounting insulator. (b) Install the wire harness clamp bracket to the rear engine mounting insulator with the bolt. Torque: 10 N·m {102 kgf·cm, 7 ft·lbf} (c) Al

 System Diagram

SYSTEM DIAGRAM Communication Table Sender Receiver Signal Line Main Body ECU (Multiplex Network Body ECU) Outer Mirror Control ECU Assembly IG signal ACC signal Outer mirror switch assembly signal Mirror position request signal (memory and reactivation function) Mirror

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