Lexus ES manuals

Lexus ES: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

  • If the battery voltage becomes low, battery load control will operate in order to ensure sufficient power is supplied to the power steering system. In this case, the windshield deicer system may not operate.

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.
Windshield Deicer System

Symptom

Suspected Area

Link

Windshield deicer does not operate

Refer to the "Windshield Deicer does not Operate".

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DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here INSPECT BATTERY VOLTAGE (a) Measure the battery voltage. Standard Voltage: 11 to 14 V If the voltage is below 11 V, recharge or replace th

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 Rough Idling (P160500)

DESCRIPTION This DTC is stored if the combustion state of any cylinder is unstable. Using the Techstream, the conditions present when the DTC was stored can be confirmed by referring to the freeze frame data. Freeze frame data records engine conditions when a malfunction occurs. This information can

 Headlight Dimmer Switch Circuit

DESCRIPTION The steering sensor receives the following switch information: Light control switch in DRL OFF*, tail, head or AUTO position Dimmer switch in high, low or high flash (pass) position *: w/ DRL OFF Switch WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the ma

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