Lexus ES: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table.
- Check each system by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected area below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Only manual switch does not operate | Tilt and telescopic manual switch circuit | |
| Only auto away/return function does not operate | Check customize status of auto away/return function using the Techstream | |
| IG power source circuit | | |
| Only auto away function does not operate | Smart access system with push-button start (for Start Function, Gasoline Model) | |
| Multiplex tilt and telescopic ECU | | |
| Only auto return function does not operate | Smart access system with push-button start (for Start Function, Gasoline Model) | |
| Multiplex tilt and telescopic ECU | | |
| Only microcomputer preset memory/recall function does not operate with the set switch operation | Front power seat control system (for Gasoline Model with Memory) | |
| Seat memory switch | | |
| Position control ECU assembly (Driver Seat) (for TMC Made) | | |
| Position control ECU assembly (Driver Seat) (for TMMK Made) | | |
| Multiplex tilt and telescopic ECU | |
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Terminals Of Ecu
TERMINALS OF ECU MULTIPLEX TILT AND TELESCOPIC ECU *a Component with harness connected (Multiplex Tilt and Telescopic ECU) - - (a) Measure the voltage and resistance according to the valu
Terminals Of Ecu
TERMINALS OF ECU MULTIPLEX TILT AND TELESCOPIC ECU *a Component with harness connected (Multiplex Tilt and Telescopic ECU) - - (a) Measure the voltage and resistance according to the valu
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) When troubleshooting a vehicle with the diagnostic system, the only difference from the usual troubleshooting procedure is connecting the Techstream to the vehicle and
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Telematics Transceiver Disconnected (B15DB)
DESCRIPTION If the radio receiver assembly cannot detect the DCM (telematics transceiver) for a certain period of time (90 seconds) after the power switch is turned on (ACC) and the radio receiver assembly confirms that the information is missing by checking past DCM (telematics transceiver) recogni
Removal
REMOVAL PROCEDURE 1. REMOVE FRONT WHEEL RH Click here 2. REMOVE FRONT WHEEL OPENING EXTENSION PAD RH (a) Remove the 3 screws and front wheel opening extension pad RH. 3. REMOVE REAR FENDER SPLASH SHIELD SUB-ASSEMBLY RH (a) Using a screwdriver with its tip wrapped with protective tap
