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:
No Sound can be Heard from Speakers
PROCEDURE
1.
CHECK AUDIO SETTINGS
(a) Display the "Sound Settings" screen.
(b) Set volume, fader and balance to the initial values and check that sound
is normal.
OK:
Audio system returns to normal.
HINT:
Sound quality adjustment measures vary acco ...
Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)
DESCRIPTION
This DTC is stored when items controlled by the certification ECU (smart key
ECU assembly) cannot be customized via the audio and visual system vehicle customization
screen.
HINT:
The certification ECU (smart key ECU assembly) controls the smart key system
related items that are ...
TC and CG Terminal Circuit
DESCRIPTION
DTC output mode is set by connecting terminals TC and CG of the DLC3.
The DTCs are displayed by blinking the SRS warning light.
HINT:
Make sure that DTCs which relate to the CAN communication system are
not output. If any of these DTCs are output, check the CAN communicat ...