Toyota Tacoma (2015-2018) Service Manual: Vacuum Warning Switch

Toyota Tacoma (2015-2018) Service Manual / Brake / Vacuum Warning Switch

Components

COMPONENTS

ILLUSTRATION

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT BRAKE FLUID LEVEL IN RESERVOIR

2. INSPECT BRAKE BOOSTER ASSEMBLY

3. INSPECT VACUUM WARNING SWITCH ASSEMBLY

(a) Start the engine and stop it after 1 or 2 minutes.

(b) Disconnect the connector from the vacuum warning switch assembly.

Standard Resistance:

10 kΩ or higher

(d) 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

(e) Connect the connector to the vacuum warning switch assembly.

Installation

INSTALLATION

PROCEDURE

1. INSTALL VACUUM WARNING SWITCH GROMMET

(a) Install a new vacuum warning switch grommet to the brake booster assembly.

2. INSTALL VACUUM WARNING SWITCH ASSEMBLY

(a) Install the vacuum warning switch assembly to the brake booster assembly as shown in the illustration.

Text in Illustration

Center of the Brake Booster Assembly

(b) Connect the connector to the vacuum warning switch assembly.

Removal

REMOVAL

PROCEDURE

1. REMOVE VACUUM WARNING SWITCH ASSEMBLY

(a) Disconnect the connector from the vacuum warning switch assembly.

(b) Remove the vacuum warning switch assembly from the brake booster assembly.

2. REMOVE VACUUM WARNING SWITCH GROMMET

(a) Remove the vacuum warning switch grommet from the brake booster assembly.

Vacuum Pump

Components COMPONENTS ILLUSTRATION Installation INSTALLATION PROCEDURE 1. INSTALL VACUUM PUMP ASSEMBLY (a) Apply engine oil to the 2 O-rings on the vacuum pump assembly. (b) Apply engine ...

Brake Control / Dynamic Control Systems

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Other materials:

Inspection
INSPECTION PROCEDURE 1. INSPECT CYLINDER BLOCK FOR WARPAGE (a) Using a precision straightedge and feeler gauge, measure the warpage of the contact surface of the cylinder head gasket. Standard warpage: 0 to 0.05 mm (0 to 0.00197 in.) Maximum warpage: 0.07 mm (0.00276 ...

Replacement
REPLACEMENT PROCEDURE 1. REPLACE STRAIGHT PIN NOTICE: It is not necessary to remove the straight pin unless it is being replaced. (a) Using a plastic-faced hammer, tap in new straight pins to the cylinder block. Text in Illustration *A Front Side *B ...

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 ...