Lexus ES manuals

Lexus ES: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

Hybrid Control System

Symptom

Suspected Area

Link

Cannot enter EV drive mode

CAN communication system

Pattern Select Switch EV Mode Circuit

EV mode switch

Combination meter assembly

EV mode indicator light does not illuminate

Combination meter assembly

EV mode switch

Pattern Select Switch EV Mode Circuit

EV mode indicator light does not turn off

Combination meter assembly

EV mode switch

Pattern Select Switch EV Mode Circuit

Cannot enter ECO mode

CAN communication system

Drive mode switch (ECO mode switch)

Pattern Select Switch Eco Mode Circuit

Combination meter assembly

ECO mode indicator light does not illuminate

Drive mode switch (ECO mode switch)

Pattern Select Switch Eco Mode Circuit

Combination meter assembly

ECO mode indicator light does not turn off

Drive mode switch (ECO mode switch)

Pattern Select Switch Eco Mode Circuit

Combination meter assembly

Cannot enter SPORT mode

CAN communication system

Drive mode switch (SPORT mode switch)

Pattern Select Switch Sport Mode Circuit

Combination meter assembly

SPORT mode indicator light does not illuminate

Drive mode switch (SPORT mode switch)

Pattern Select Switch Sport Mode Circuit

Combination meter assembly

SPORT mode indicator light does not turn off

Drive mode switch (SPORT mode switch)

Pattern Select Switch Sport Mode Circuit

Combination meter assembly

Hunting (Poor idle)

Check for Diagnosis Related Information*1

Drive Start Control

Hesitation and/or poor acceleration

Check for Diagnosis Related Information*1

Brake Override System

Drive Start Control

Shift range position cannot be changed by shifting to "+"or "-"

Transmission Control Switch Circuit

Shift Paddle Switch Circuit

Shift position indicator is malfunctioning

Indicator Circuit

Power switch does not turn on (READY).

Smart Access System with Push-button Start (for start function)

ECU Power Source Circuit (Hybrid control system)

Hybrid vehicle control ECU

ECM

Loud rattle from hybrid vehicle transaxle

Check idle learning

Transmission input damper assembly

Hybrid vehicle transaxle assembly

Engine misfire

-

*1: If any of the following Diagnosis Related Information items are output, perform troubleshooting for the corresponding DTCs.

Result

Result

Link

Hybrid control system

P312387

Motor generator control system

P31241F

P312487

READ NEXT:

 Terminals Of Ecu

TERMINALS OF ECU Terminal No. (Symbol) Wiring Color Terminal Description Input/Output Condition Specified Condition A32-1 (+B2) - G59-6 (E1) W - W-B Power source Input Power

 Diagnosis System

DIAGNOSIS SYSTEM DESCRIPTION (a) The hybrid vehicle control ECU has a self-diagnosis system. If the computer, hybrid control system, or a component is not working properly, the ECU records the conditi

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK FOR DTCS (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Hybrid Control / Tro

SEE MORE:

 Torque Sensor1 (C1511-C1514,C1521-C1523,C1528,C1531-C1555)

DESCRIPTION While torque sensor system, motor system or ECU system malfunctions are detected, the fail-safe function suspends power assist. However, power assist continues with limited assistance amount if only C1533 or C1534 is output. DTC No. Detection Item DTC Detection Condition Trouble

 Installation

INSTALLATION PROCEDURE 1. INSTALL OUTER MIRROR SWITCH ASSEMBLY (a) Engage the 4 claws to install the outer mirror switch assembly. 2. INSTALL MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WITH FRONT DOOR UPPER ARMREST BASE PANEL Click here

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