Lexus ES manuals

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 symptom 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 areas below.
Charging System

Symptom

Suspected Area

Link

Charge warning is displayed

Battery

Generator assembly

Charging system

Charging failure

Generator pulley with clutch

Generator assembly

Noise occurs from V-ribbed belt or generator assembly

V-ribbed belt

Generator pulley with clutch

Generator assembly

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 How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT 2. CUSTOMER PROBLEM ANALYSIS HINT: In troubleshooting, confirm

 System Diagram

SYSTEM DIAGRAM

 Parts Location

PARTS LOCATION ILLUSTRATION *1 GENERATOR ASSEMBLY *2 ECM *3 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - - ILLUSTRATION *1 COMBINATION METER ASSEMBLY

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 Brake System (C1A50)

DESCRIPTION When an electronically controlled brake system malfunction signal sent from the skid control ECU is detected by the clearance warning ECU assembly, DTC C1A50 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A50 Brake System When the engine switch

 Control Module Performance Bank 1 Watchdog/Safety MCU Failure (P060747,P060787)

MONITOR DESCRIPTION The ECM continuously monitors its internal ICs and the monitor IC. If the monitor IC is abnormal, the ECM illuminates the MIL and stores DTC P060747. If an internal IC is abnormal, the ECM illuminates the MIL and stores DTC P060787. DTC No. Detection Item DTC Detection Con

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