Lexus ES: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE FLUID LEVEL IN RESERVOIR
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2. INSPECT BRAKE BOOSTER ASSEMBLY
Click here
3. INSPECT VACUUM WARNING SWITCH ASSEMBLY
(a) Start the engine and stop it after 1 or 2 minutes.
(b) Remove the battery.
for A25A-FKS: Click here
for 2GR-FKS: Click here
(c) Disconnect the connector from the vacuum warning switch assembly.
(d) Measure the resistance of the vacuum warning switch assembly.
Standard Resistance:
10 kΩ or higher
(e) With the engine stopped, depress the brake pedal several times to release vacuum from the brake booster assembly, and measure the resistance of the vacuum warning switch assembly.
Standard Resistance:
Below 1 Ω
(f) Connect the connector to the vacuum warning switch assembly.
(g) Install the battery.
for A25A-FKS: Click here
for 2GR-FKS: Click here
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