Toyota Tacoma (2015-2018) Service Manual: On-vehicle Inspection

Toyota Tacoma (2015-2018) Service Manual / Brake / Brake Booster / On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. CHECK BRAKE BOOSTER ASSEMBLY

(a) Airtightness check.

Text in Illustration

*a	Correct
*b	Incorrect

(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 cannot be depressed to the floor the second and third time, the booster is airtight.

(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 then start the engine.

If the pedal goes down slightly, the operation is normal.

Components

COMPONENTS ILLUSTRATION ...

Removal

REMOVAL CAUTION / NOTICE / HINT NOTICE: Release the vacuum from booster by depressing the brake pedal several times. Then remove the brake master cylinder from brake booster. PROCEDURE 1. PRECAU ...

Other materials:

Open in Front Floor Electrical Key Oscillator Circuit (B27A5)
DESCRIPTION The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the No. 1 indoor electrical key antenna assembly (front floor). For the No. 1 indoor electrical key antenna assembly (front floor) to detect when the electrical key transmitter su ...

Removal
REMOVAL CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure described below is for the LH side. PROCEDURE 1. REMOVE FRONT DOOR GLASS RUN 2. REMOVE FRONT DOOR GLASS OUTER WEATHERSTRIP ASSEMBLY (See page ) 3. REMOVE NO. 1 BLAC ...

Brake Signal Malfunction (B2284)
DESCRIPTION This DTC is stored when the brake signal sent via direct line and the brake signal sent via CAN communication do not match. HINT: When the cable is disconnected and reconnected to the negative (-) battery terminal, the power source mode returns to the state it was in before the ca ...