Lexus ES manuals

Lexus ES: Operation Check

OPERATION CHECK

CHECK WINDOW DEFOGGER SYSTEM

(a) Turn the power switch on (IG).

(b) Check that the rear window defogger wire becomes warm by operating the rear window defogger switch of the air conditioning control assembly.

(c) When the vehicle is stopped, confirm that the window defogger system operation stops after approximately 15 minutes.

NOTICE:

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

HINT:

The window defogger system is linked with the mirror heater function.

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 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Inspect the fuses and relays related to this system before inspecting the suspected areas below. Use the table below to help determine the cause of problem symptoms.

 Terminals Of Ecu

TERMINALS OF ECU CHECK AIR CONDITIONING AMPLIFIER ASSEMBLY *A w/o Seat Heater *B w/ Seat Heater (a) Disconnect the G39 air conditioning amplifier assembly connector. (b) Measure the volta

 Diagnosis System

DIAGNOSIS SYSTEM CHECK DLC3 (a) Check the DLC3. Click here INSPECT AUXILIARY BATTERY VOLTAGE (a) Measure the auxiliary battery voltage with the power switch off. Standard Voltage: 11 to 14 V If the

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 Customize Parameters

CUSTOMIZE PARAMETERS CUSTOMIZE LIGHTING SYSTEM (EXT) NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a note of the current settings before customizing. When troubleshooting a function, first make sure that the fun

 HO2S Heater Control Bank 1 Sensor 1 Circuit Short to Battery (P003012,P003013,P005012,P005013,P101A9E,P103A9E)

DESCRIPTION Refer to DTC P219519. Click here HINT: When any of these DTCs are stored, the ECM enters fail-safe mode. The ECM turns off the air fuel ratio sensor heater in fail-safe mode. Fail-safe mode continues until the engine switch is turned off. Although the DTC titles say oxygen sensor,

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