Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: 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:

General Information
GENERAL INFORMATION A large number of ECU controlled systems are used in the TOYOTA TACOMA. In general, ECU controlled systems are considered to be very intricate, requiring a high level of technical knowledge to troubleshoot. However, most problem checking procedures only involv ...

Problem Symptoms Table
PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each sy ...

Tachometer Malfunction
DESCRIPTION In this circuit, the meter CPU receives engine speed signals from the ECM using the CAN communication system (CAN V1 Bus). The meter CPU displays the engine speed calculated based on the data received from the ECM. WIRING DIAGRAM PROCEDURE 1. CHECK CAN CO ...

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