Tacoma

Toyota Tacoma 2015-2018 Brake Workshop Manual

2. ACTIVE TEST
HINT:
Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated
without removing any parts. This non-intrusive functional inspection can be very useful because
intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early
in troubleshooting is one way to save diagnostic time. Data List information can be displayed while
performing Active Tests.
(a) Warm up the engine.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.
(f) According to the display on the Techstream, perform the Active Test.
ABS/VSC/TRAC
TESTER
DISPLAY
TEST PART CONTROL
RANGE
DIAGNOSTIC NOTE
ABS Warning
Light
ABS warning light
Warning light
OFF/ON
Observe the combination meter.
[Vehicle condition]
Vehicle stopped
Brake Warning
Light
BRAKE warning light
Warning light
OFF/ON
Observe the combination meter.
[Vehicle condition]
Vehicle stopped
Buzzer VSC warning buzzer
Buzzer
OFF/ON
The buzzer can be heard.
[Vehicle condition]
Vehicle stopped
Solenoid Relay Solenoid relay
Relay
OFF/ON
An operating sound of the solenoid
(clicking sound) can be heard.
[Vehicle condition]
Vehicle stopped
Motor Relay Motor relay
Relay
OFF/ON
An operating sound of the motor
can be heard (does not come on
for 2 to 5 seconds).
[Vehicle condition]
Vehicle stopped
Stop Light
Relay
Stop light control relay (STOP LP CTRL)
Relay
OFF/ON
Observe the stop light (does not
come on for 2 to 5 seconds).
[Vehicle condition]
Vehicle stopped
ABS Solenoid
(SRLR)
ABS solenoid (SRLR)
Solenoid
OFF/ON
An operating sound of the solenoid
(clicking sound) can be heard
(does not come on for 2 to 5
seconds).
ABS Solenoid
(SRLH)
ABS solenoid (SRLH)
Solenoid
OFF/ON
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