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 | - |
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*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 | ||
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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
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System Description
SYSTEM DESCRIPTION GRILLE SHUTTER SYSTEM (a) General description The swing grille actuator assembly receives signals from the ECM, hybrid vehicle control ECU and air conditioning amplifier assembly via CAN communication. Based on these signals, the swing grille actuator assembly operates the radiato
Inspection
INSPECTION PROCEDURE 1. INSPECT REAR STABILIZER LINK ASSEMBLY (a) Inspect the turning torque of the ball joint. (1) Secure the rear stabilizer link assembly in a vise using aluminum plates. NOTICE: Do not overtighten the vise. (2) Install the nut to the rear stabilizer link assembly stud. (3) Move
