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 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 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 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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DIAGNOSIS SYSTEM DESCRIPTION The main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) control the LIN communication system. LIN communication system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3). When the system see
DESCRIPTION The forward recognition camera monitors its optical axis status. If it determines that the optical axis alignment has become misaligned, it will store DTC C1AA800. DTC No. Detection Item DTC Detection Condition Trouble Area C1AA800 Front Recognition Camera Optical Axis Mis
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