Toyota Tacoma 2015-2018 Service Manual: 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
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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.
(c) Measure the resistance of 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
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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 ...
Other materials:
Registration
REGISTRATION
PROCEDURE
1. REGISTER TRANSMITTER CODE
HINT:
The vehicle's garage door opener records transmitter codes for systems
such as garage doors, gates, entry gates, door locks, home lighting systems,
security systems or other transmitter code based systems.
The gara ...
Purge Valve
Components
COMPONENTS
ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
1. INSPECT PURGE VSV
(a) Measure the resistance according to the value(s) in the table below.
Text in Illustration
*a
Component without harness connected
(Purge VSV ...
HD Radio Tuner Malfunction (B1551,B158D,B15A0,B15B0,B15B3,B15B4,B15B7)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the radio and display receiver
assembly.
DTC No.
DTC Detection Condition
Trouble Area
B1551
When one of the conditions below is met:
"HD Radio" tune ...