Lexus ES: Operation Check
OPERATION CHECK
CHECK DOOR OPEN LINKED WIPER SUSPEND FUNCTION (w/ Auto Wiper System)
(a) Continuously apply water to the windshield glass in front of the rain sensor.
(b) Turn the engine switch on (IG).
(c) Move the windshield wiper switch assembly to the AUTO position and check that the front wipers operate.
(d) Open the driver door or front passenger door and check that the front wipers stop.
CHECK SERVICE POSITION CONTROL
(a) Turn the engine switch off.
(b) Within approximately 45 seconds of turning the engine switch off, hold the windshield wiper switch assembly in the MIST position for 2 seconds and confirm that the wipers move to the uppermost position.
CHECK AUTO WIPER FUNCTION (w/ Auto Wiper System)
(a) Continuously apply water to the windshield glass in front of the rain sensor.
(b) Turn the engine switch on (IG).
(c) Move the windshield wiper switch assembly to the AUTO position.
(d) Check that the front wipers operate.
CHECK INTERMITTENT CONTROL FUNCTION
HINT:
When the AUTO wiper function is disabled through a customize setting, the intermittent control function can be operated.*1
Click here .gif)
(a) Turn the engine switch on (IG).
(b) Move the windshield wiper switch assembly to the AUTO*1 or INT*2 position.
(c) Check that the intermittent operation interval can be adjusted from approximately 4 to 12.5 seconds by operating the auto sensitivity adjustment switch.
- *1: w/ Auto Wiper System
- *2: w/o Auto Wiper System
CHECK VEHICLE SPEED SENSING TYPE ADJUSTABLE INTERMITTENT WIPER CONTROL
HINT:
When the AUTO wiper function is disabled through a customize setting, the intermittent control function can be operated.*1
Click here
(a) Turn the engine switch on (IG).
(b) Move the windshield wiper switch assembly to the AUTO*1 or INT*2 position.
(c) Check that the intermittent operation interval changes from approximately 1.5 to 11 seconds according to the vehicle speed and the position of the auto sensitivity adjustment switch of the windshield wiper switch assembly.
- *1: w/ Auto Wiper System
- *2: w/o Auto Wiper System
WASHER OPERATION INSPECTION
(a) Turn the engine switch on (IG).
(b) Washer operation inspection:
Operate the washer switch for approximately 0.5 seconds or more and confirm that the front wipers operate in the LO setting when the washer fluid is sprayed and that the front wipers cycle 3 times after releasing the washer switch.
(c) Drip prevention wiper function:
Operate the washers and check that approximately 3 seconds after washer cooperation operates, the wipers operate 1 cycle.
NOTICE:
Perform this inspection with the vehicle stopped.
LEVEL WARNING OPERATION INSPECTION
(a) When the volume of washer fluid decreases to below a certain level (when the level warning switch is turned on), the multi-information display warns the driver by displaying a message.
READ NEXT:
Customize Parameters
CUSTOMIZE PARAMETERS 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 customiz
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Click here HINT:
Use the table below to help determine the cause of proble
Utility
UTILITY OPERATION HISTORY HINT: History of Reason for Operation: The windshield wiper motor assembly stores Operation History which can be read using the Techstream, when a malfunction of the wiper an
SEE MORE:
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
Stop Light Relay Circuit (C1A4B)
DESCRIPTION When a stop light relay circuit malfunction signal sent from the electronically controlled brake system is detected by the clearance warning ECU assembly, DTC C1A4B is stored. DTC No. Detection Item DTC Detection Condition Trouble Area C1A4B Stop Light Relay Circuit Stop
