Lexus ES: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE BOOSTER ASSEMBLY
(a) Airtightness check
| (1) Start the engine and stop it after 1 or 2 minutes. Slowly depress the brake pedal several times. HINT: If the brake pedal can be depressed nearly to the floor the first time, but on the 2nd and 3rd time cannot be depressed as far, the brake booster assembly is airtight. |
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(2) Depress the brake pedal with the engine running, and stop the engine with the brake pedal depressed.
HINT:
If there is no change in the brake pedal reserve distance while holding the brake pedal depressed for 30 seconds, the brake booster assembly is airtight.
(b) Operation check
| (1) Depress the brake pedal several times with the engine switch off and check that there is no change in the brake pedal reserve distance when the brake pedal is depressed. |
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| (2) Depress and hold the brake pedal, then start the engine. HINT: If the brake pedal goes down slightly, operation is normal. |
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Reassembly
REASSEMBLY PROCEDURE 1. INSTALL VACUUM WARNING SWITCH ASSEMBLY (a) Install a new check valve grommet to the brake booster assembly. (b) Install the vacuum warning switch assembly to the brake booster
Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during brak
SEE MORE:
Parts Location
PARTS LOCATION ILLUSTRATION *1 ECM *2 REAR TELEVISION CAMERA ASSEMBLY *3 BLIND SPOT MONITOR SENSOR RH (w/ Blind Spot Monitor System) *4 BLIND SPOT MONITOR SENSOR LH (w/ Blind Spot Monitor System) *5 PARK/NEUTRAL POSITION SWITCH ASSEMBLY (for 8 inch display) - - ILLUS
Components
COMPONENTS ILLUSTRATION *1 FORWARD RECOGNITION CAMERA *2 FORWARD RECOGNITION WITH HEATER HOOD SUB-ASSEMBLY
