Toyota 4Runner manuals

Toyota 4Runner: 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.

If the pedal can be depressed to the floor the first time, but on the 2nd and 3rd times cannot be depressed as far, the booster is airtight.

Text in Illustration

*a

CORRECT

*b

INCORRECT


(2) Depress the brake pedal while the engine is running and stop the engine with the brake pedal depressed.

If there is no change in the pedal reserve distance while holding the pedal for 30 seconds, the booster is airtight.

(b) Operation check

(1) Depress the brake pedal several times with the ignition switch off and check that there is no change in the pedal reserve distance when the pedal is depressed.


(2) Depress and hold down the pedal and start the engine.

If the pedal goes down slightly, operation is normal.


Components
COMPONENTS ILLUSTRATION ...

Removal
REMOVAL CAUTION / NOTICE / HINT NOTICE: Make sure to release the vacuum from the brake booster before removing the master cylinder from the brake booster. PROCEDURE 1. DRAIN BRAKE FLUID NOTICE ...

Other materials about Toyota 4Runner:

Steering Angle Sensor Circuit Malfunction (C1884/84)
DESCRIPTION The stabilizer control ECU receives steering angle information from the steering angle sensor via CAN communication. DTC Code DTC Detection Condition Trouble Area C1884/84 Either cond ...

Removal
REMOVAL PROCEDURE 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. NOTICE: When disconnecting the cable, some systems ne ...

© 2016-2025 | www.to4runner.net

0.0067