Lexus ES manuals

Lexus ES: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT BRAKE FLUID LEVEL IN RESERVOIR

Click here

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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